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  • A very warm welcome to viewers worldwide of CNN Student News.

    非常熱烈地歡迎世界各地的觀眾收看CNN學生新聞。

  • I'm Carl Azuz at the CNN Center.

    我是CNN中心的卡爾-阿祖茲。

  • First up, this Thursday, a volcanic eruption near Bali.

    首先,本週四,巴厘島附近的火山噴發。

  • This is a popular resort island in the Pacific Island country of Indonesia.

    這是太平洋島國印度尼西亞的一個熱門度假島。

  • That's key here.

    這就是這裡的關鍵。

  • Because even though this eruption of Mt Rinjani wasn't actually on Bali,

    因為即使這次林加尼山的噴發其實並不在巴厘島。

  • the wind blew its volcanic ash towards the island.

    風把它的火山灰吹向小島。

  • And even though the eruption wasn't a major threat to people on the ground,

    而即使噴發對地面上的人來說並沒有什麼大的威脅。

  • it is to planes in the air.

    它是對飛機在空中。

  • Volcanic ash can melt if it's sucked into aircraft engines.

    火山灰如果被吸進飛機發動機,就會融化。

  • It turns into a glass like substance that can cause them to lose power or break down.

    變成玻璃一樣的物質,會使它們失去動力或壞掉。

  • So, from Tuesday night until today,

    所以,從週二晚上到今天。

  • around 700 flights in the region were cancelled,

    該地區約有700個班機被取消。

  • leaving people stranded either unable to leave Bali or unable to get there.

    使人們滯留在巴厘島,要麼無法離開,要麼無法到達。

  • Ice in Antarctica, there's a lot of it.

    南極洲的冰,有很多。

  • Doesn't sound much like breaking news,

    聽起來不怎麼像重大新聞。

  • but new information suggests it's increasing,

    但新的資訊表明它'的增加。

  • and that's puzzling some scientists because research over the last ten years

    這讓一些科學家感到困惑,因為在過去的十年裡,研究

  • suggested that Antarctica is losing ice,

    表示,南極洲的冰層正在流失。

  • and that the melt is contributing to rising sea levels.

    並認為融化導致海平面上升。

  • Last year NASA reported that Antarctic sea ice reached a new record size.

    去年美國宇航局報告稱,南極海冰面積達到了新的紀錄。

  • Now it looks like the continent's ice sheet is growing.

    現在看來,大陸'的冰層正在增長。

  • We know that sea levels around the world are rising,

    我們知道,全世界的海平面正在上升。

  • and current thinking is that part of that sea level rise

    而目前的想法是,海平面上升的一部分

  • comes from melting ice in Antarctica.

    來自於南極洲的融冰。

  • But one recent study from NASA scientists says that may not be the case.

    但美國宇航局科學家最近的一項研究表示,情況可能並非如此。

  • Antarctica is a big place, roughly the size of the US and Mexico combined.

    南極洲是個很大的地方,大概相當於美國和墨西哥加起來的面積。

  • So as you might expect, changes in its ice are not uniform

    所以正如你所料,它的冰層的變化並不均勻。

  • across the entire continent. Nearly all scientists agree

    在整個大陸上。幾乎所有科學家都同意

  • that ice is being lost from the Western part of Antarctica

    南極洲西部地區的冰層正在流失。

  • and along its peninsula.

    及其半島一帶。

  • On the Eastern side, ice is actually being gained,

    在東邊,冰塊實際上是在獲得。

  • but where this study is different is they measure that

    但這項研究的不同之處在於他們測量的是

  • gaining of ice along Eastern Antarctica is outpacing the loss on the Western side.

    南極洲東部冰層的增加速度超過了西部的損失速度。

  • What's behind this addition of ice?

    這加冰的背後是什麼?

  • It's snowfalls that started becoming heavier around 10, 000 years ago.

    它'的降雪,大約在一萬年前就開始變得越來越大。

  • The scientists know this by looking into ice core data.

    科學家們通過研究冰芯數據知道了這一點。

  • Why is this important?

    為什麼這很重要?

  • It would mean that Antarctica is not contributing to sea level rise.

    這將意味著南極洲沒有造成海平面上升。

  • Bottom line, there is still a lot we need to learn about how Antarctica

    一句話,關於南極洲是如何發展的,我們還有很多需要了解的。

  • is reacting to climate change.

    正在應對氣候變化。

  • Nine hours a day, that's how much time on average

    每天9個小時,這就是平均的時間'。

  • that American teenagers are spending with electronic media.

    美國青少年在電子媒體上度過的。

  • And this doesn't count any media they might use for school.

    而這還不算他們在學校可能使用的任何媒體。

  • According to a study by a non- profit group called Common Sense Media,

    根據一個名為 "常識媒體 "的非盈利組織的研究。

  • its CEO says this shows that digital technology

    其CEO表示,這表明數字技術

  • is the dominant force in teenagers lives,

    是青少年生活中的主導力量。

  • that they spend more time with it than anything else including sleeping.

    他們花更多的時間與它比其他任何事情,包括睡覺。

  • And if you just break out screen time, smartphones, computers,

    而如果你只是打破螢幕時間,智能手機,電腦。

  • TVs, tablets, teenagers spend more than six and a half hours a day with it,

    電視、平板電腦,青少年每天與之相處的時間超過6個半小時。

  • and younger kids more than four and a half hours.

    和更小的孩子超過四個半小時。

  • Media can affect learning. Most of those surveyed said

    媒體會影響學習。大多數受訪者表示

  • they're texting or listening to music while they're doing homework.

    他們'正在發短信或聽音樂,而他們'正在做作業。

  • And experts say this makes them less effective at their homework.

    而專家表示,這使得他們的作業效率降低。

  • Social media often factors in too, and for many,

    社交媒體往往也是因素,對於很多。

  • social media seems to correlate with social standing.

    社交媒體似乎與社會地位相關。

  • The first headline, the more teens look at social media,

    第一個頭條,青少年看社交媒體越多。

  • the more distressed they can become.

    他們就會越發苦惱。

  • Teens check their social media feeds way more than they actually post something.

    青少年檢查他們的社交媒體飼料的方式比他們實際發佈的東西。

  • Our experts call it lurking.

    我們的專家稱之為潛伏。

  • And the heaviest users in this study told us they check their feeds

    在這項研究中,最重度的用戶告訴我們,他們會檢查他們的feeds。

  • more than a hundred times a day.

    每天超過一百次。

  • Sometimes I'll catch myself going on my social media way too much.

    有時候,我'會發現自己上社交媒體的次數太多。

  • About 200 times. In a day?

    大約200次。一天之內?

  • We asked about 20 teens in our study to send us videos

    我們要求我們研究中的20名青少年給我們發視頻。

  • responding to questions about the power of social media in their lives.

    回答關於社交媒體在他們生活中的力量的問題。

  • The most times I check it in a day? I lose track.

    我一天中查看最多的次數是什麼?我記不清了

  • It's just, I need to. I probably check my phone 90, 100, 110.

    這'只是,我需要。我可能檢查我的手機90,100,110。

  • Even when I'm hanging out with people I still check my phone a lot.

    即使在我'和別人一起出去玩的時候,我還是會經常看手機。

  • Cuz I mean, the one thing I don't wanna do is miss out on something.

    因為我的意思是,我不想做的一件事是錯過了什麼。

  • I think I've checked it about 100 times at school before.

    我想我之前在學校已經檢查了100次左右。

  • I'll just whip it out in the middle of class and I'm like wonder

    我就會在課間抽出它,我就像奇蹟一樣

  • what everybody else is up to.

    其他人都在做什麼。

  • Why check over 100 times a day, even during school.

    為什麼一天要檢查100多次,甚至在學校期間也要檢查。

  • They're really worried about fitting in. 21 % say.

    他們'真的很擔心融入。21%的人說。

  • I want to make sure no one is saying mean things about me.

    我想確保沒有人說我的壞話。

  • 36 % say. I want to see if my friends are doing things without me.

    36%的人說:"我想看看我的朋友是否在做沒有我的事情。我想看看我的朋友們是否在做沒有我的事情。

  • And 61 % say. I want to see if my posts are getting likes and comments.

    還有61%的人說。我想看看我的文章有沒有得到喜歡和評論。

  • Clinical psychologist Dr. Marian Underwood is the co- author of the study.

    臨床心理學家Marian Underwood博士是該研究的共同作者。

  • It is stressful to constantly be monitoring and worrying.

    不斷地被監控和擔心是很有壓力的。

  • About how people might have responded to what you've put online.

    關於人們可能對你放在網上的東西有什麼反應。

  • This is an age group that has a lot of anxiety about where they fit in,

    這個年齡段的人,對自己的定位有很多焦慮。

  • how they rank, what their peer status is.

    他們的排名如何,同行地位如何。

  • They don't just get online to see how many likes or favorites they got.

    他們不只是上網看看自己得到了多少贊或收藏。

  • They're comparing their numbers to other people's numbers.

    他們'在拿自己的數字和別人的數字比較。

  • It's time to take attendance, you all.

    是時候考勤了,各位。

  • On yesterday's transcript page at CNNStudentnews.com,

    在昨天'的成績單頁面上,在CNNStudentnews.com。

  • we heard from the Norsemen.

    我們從諾森人那裡聽說了

  • Northglenn High School is on the roll from Northland, Colorado.

    諾斯格倫高中是來自科羅拉多州北地的卷。

  • We heard from the panthers in Powell, Tennessee.

    我們從田納西州Powell的豹子那裡聽說了。

  • Powell high school is watching.

    鮑威爾高中在看。

  • And from the most populated city in the world's most populated country,

    而從世界上人口最多的城市'的國家。

  • we're talking about Shanghai, China,

    我們'說的是中國上海。

  • hello to everyone at Shanghai Community International School.

    上海社區國際學校的同學們,大家好。

  • Scientists have a new tool that could let them alter our genes

    科學家有一種新的工具,可以讓他們改變我們的基因。

  • in a relatively quick and efficient way.

    以比較快速有效的方式。

  • In biology, we learn that genes, made from DNA, determine our looks,

    在生物學中,我們瞭解到,由DNA組成的基因,決定了我們的容貌。

  • our height, how we laugh, and what diseases we may be prone to.

    我們的身高,我們的笑聲,以及我們可能容易得什麼病。

  • A new engineering technique called CRISPR, C R I S P R,

    一種名為CRISPR的新工程技術,C R I S P R。

  • could give researchers the power to edit DNA for better or for worse.

    可以給研究人員提供編輯DNA的權力,無論好壞。

  • Your body contains 37. 2 trillion cells.

    你的身體包含37。2萬億個細胞。

  • And within each is a copy of a code consisting of more than 20, 000 genes

    而在每個人的體內,都有一個由2萬多個基因組成的密碼副本。

  • and billions of strands of DNA. This code is your genome,

    和數十億條DNA鏈。這個代碼是你的基因組。

  • and it determines everything that makes you, you.

    它決定了你的一切,你。

  • What if you could modify that code,

    如果你能修改那段代碼呢。

  • bring back extinct species, eliminate hereditary diseases?

    讓滅絕的物種復活,消除遺傳性疾病?

  • That is precisely what molecular engineers and geneticists

    這正是分子工程師和遺傳學家的工作

  • around the world are working on.

    世界各地都在努力。

  • Genes are what we get, and we're stuck with them.

    基因是我們得到的,而我們'被它們困住了。

  • And the environment is the only thing we can change, and there's kind of a limit

    而環境是我們唯一能改變的東西,而且有種限制。

  • on how much we can do. But now, if we can change our genes, too,

    我們能做多少就做多少但現在,如果我們也能改變自己的基因。

  • we're really closer to total control of our biology and physiology.

    我們'真正接近完全控制我們的生物學和生理學。

  • George Church is one of many using a revolutionary gene

    喬治-丘奇是眾多使用革命性基因的人之一。

  • editing technique called CRISPR Cas9,

    被稱為CRISPR Cas9的編輯技術。

  • which allows you to modify DNA sequences.

    它允許你修改DNA序列。

  • CRISPR is a way that you can design

    CRISPR是一種可以設計出

  • and target a particular part of your genome,

    並針對您基因組的某一特定部分。

  • and change it to something else, or you can delete a gene.

    並把它改成其他的東西,或者你可以刪除一個基因。

  • You can make all sorts of edits very precisely.

    你可以非常精確地進行各種編輯。

  • CRISPR is kind of like having the Find > Delete > Replace function for DNA.

    CRISPR有點像DNA的查找>刪除>替換功能。

  • No one actually invented the process. It happens naturally.

    其實沒有人發明這個過程。它是自然發生的。

  • Scientists discovered that bacteria alter their DNA to defend against viruses,

    科學家發現,細菌改變了自己的DNA,以抵禦病毒。

  • essentially storing part of a virus so they can identify, targe, and attack the virus

    本質上是存儲病毒的一部分,以便他們能夠識別、鎖定和攻擊病毒。

  • if If it comes back. Researchers realize the tools bacteria use to do this

    如果如果它回來了。研究人員意識到,細菌用來做這件事的工具就是

  • were cast proteins, nature's genetic scissors.

    是鑄造的蛋白質,大自然'的基因剪刀。

  • Geneticists are now using these proteins to make their own targeted changes to DNA.

    遺傳學家們現在正利用這些蛋白質對DNA進行自己的針對性改變。

  • This could be used in agriculture where you could change any plant or animal.

    這可以用在農業上,你可以改變任何植物或動物。

  • It can be used to eliminate invasive species.

    它可以用來消除入侵物種。

  • What's most exciting about CRISPR is our ability to

    CRISPR最讓人興奮的是我們能夠

  • alter long standing epidemics like malaria and HIV.

    改變瘧疾和艾滋病毒等長期流行病。

  • And that could potentially save millions of lives.

    而這有可能挽救數百萬人的生命。

  • But CRISPR is not without controversy.

    但CRISPR並非沒有爭議。

  • Consider what you can do with a person's DNA.

    想想你能用一個人的DNA做什麼。

  • This past year for the first time, scientists in China used CRISPR

    在過去的一年裡,中國的科學家首次使用CRISPR

  • in an unsuccessful attempt to edit the genomes of human embryos.

    在一次不成功的嘗試中,編輯人類胚胎的基因組。

  • People fear CRISPR could lead to designer babies.

    人們擔心CRISPR會導致設計師嬰兒。

  • How can we prevent that from happening?

    如何防止這種情況的發生?

  • We shouldn't be playing. We should be engineering.

    我們不應該玩。我們應該是工程。

  • And I think that's what we are doing.

    而我認為這'就是我們正在做的事情。

  • Where do you think the moral and ethical boundary is? Safety.

    你認為道德倫理的邊界在哪裡?安全。

  • I think safety is number one.

    我認為安全是第一位的。

  • Just like any new technology or new drug,

    就像任何新技術或新藥一樣。

  • we should try to make it as safe as possible.

    我們應該儘量使其安全。

  • At the intersection of fascinating and disgusting is this.

    在迷人和噁心的交叉點上,就是這樣。

  • It's a wall of gum.

    這是一堵口香糖牆。

  • Once listed as one of the germiest attractions in the world,

    曾經被列為世界上細菌最多的景點之一。

  • it's located in Seattle, Washington's Pike Place Market.

    它'位於華盛頓州西雅圖的派克市場。

  • Legend has it that folks going to the theater there in the 1990s

    傳說上世紀90年代去那裡看戲的人們

  • decided it'd be better to stick their gum on this brick wall than under their seats.

    決定把他們的口香糖貼在這面磚牆上,比貼在座位下面要好。

  • 20 years and an estimated one million pieces later,

    20年,估計100萬件後。

  • it spread well beyond the original wall.

    它的傳播範圍遠遠超過了原來的牆壁。

  • So, officials are spending about $ 4, 000 to get it steam cleaned.

    所以,官員們要花4000元左右的費用來進行蒸汽清洗。

  • They do expect the gummy tradition to continue,

    他們確實期待著橡皮糖的傳統能夠繼續下去。

  • just on a clean slate.

    只是在一個乾淨的板塊。

  • Plans for how to do the job are just brick gumming.

    計劃怎麼做,只是磚頭膠合而已。

  • It'll have to be done piece by piece, brick by brick,

    它'要一塊一塊地做,一磚一瓦地做。

  • gritting your teeth and hoping you don't get stuck.

    咬緊牙關,希望自己不要被卡住。

  • And while we can sit and jaw about this all day,

    當我們可以整天坐在這裡為這個問題發愁時。

  • we've already gummed up the last part of our show

    我們已經把我們節目的最後一部分搞砸了

  • and we don't have any more time to stick around.

    而我們沒有更多的時間來堅持。

  • I'm Carl Azuz for CNN Student Chews.

    我'我是卡爾-阿祖茲,為CNN學生嚼。

A very warm welcome to viewers worldwide of CNN Student News.

非常熱烈地歡迎世界各地的觀眾收看CNN學生新聞。

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November 5, 2015 - CNN Student News with subtitle

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