每日口說挑戰自由潛水的危險｜科學的愚蠢 - 荒謬的失敗 (The Dangers of Free Diving | Science of Stupid: Ridiculous Fails)

自由潛水可能發生的併發症 : Decompression sickness (減壓症,潛水夫病)、氮醉(Nitrogen narcosis)。氮醉是在進行潛水或深潛運動時常用的名詞。一般而言，水壓會隨著潛水深度而增加，當潛水員處於高水壓環境（約3至4大氣壓力以上），肺內氮氣會因高壓緣故，而對潛水員產生麻醉作用。氮醉的症狀類似飲用含酒精飲料所造成的酒醉症狀。包括愉悅、幸福感、緊張、興奮、反應遲緩、認知及集中力降低。

■ narcosis [nɑrˋkosɪs] n. 麻醉作用；麻醉法；昏迷狀態 = a state of stupor([ˋstjupɚ]n.神智不清), drowsiness([ˋdraʊzɪnɪs]n.倦怠), or unconsciousness([ʌnˋkɑnʃəsnɪs]n.意識不清) produced by drugs
Ex: The patient was treated in prone([pron]a.俯伏的) position without narcosis.

0:26 Are you guys getting ready for warmer weather, maybe a trip to the beach, and some fun down in the water? It’s a great way to get you cooled off(冷卻), and swimming has tons of health benefits. However, as summer approaches(v.接近) and more and more people decide to take on water sports like free diving(n.潛水), we should probably be aware of the dangers that come along with this breath-holding(憋氣) activity. The video mentions words like “blackout(n.暫時失去知覺)” and oxygen starvation(缺氧)” - nothing I’d want anyone to experience. So, be sure to stay safe and stay informed(a.消息靈通的), but let’s take a closer look at today’s sentence: “Its large surface area displaces([dɪsˋples]v.迫使…離開常居地或原位) a lot of water, propelling([prəˋpɛl]v.推進) him forwards with minimal effort, thereby(adv.因此) conserving(v.節省) oxygen.” (以下翻譯取自uinickname) 單片分鰭式蹼鞋(monofin)大大的表面積可排開大量的水，讓泳者只要費一點點的力氣就可以往前推進，因而節省了氧氣的消耗。

1. displace [dɪsˋples] (v.)移開；迫使To displace something means to force it out of its original position. It is moved to another location. This can also apply to people or animals. Once someone is displaced, they are forced to move or find a home in another place.

Ex: The construction of this dam(n.水壩) will displace hundreds of families in this area, leaving them with no choice but to move to the outskirts(市郊) of the city.

the outskirts([ˋaʊt͵skɝts]n.市郊,郊區)
The area or region outside or on the edge of a city.

A common reason for people to be displaced can also be caused by war and political unrest([ʌnˋrɛst]n.動盪).

2. propel [prəˋpɛl] (v.)推進，推動
Maybe you’ve heard the word ‘propeller([prəˋpɛlɚ]n.螺旋槳,推進器)’, which are often found on smaller airplanes, or helicopters - the spinning(a.旋轉的) blades(n.葉片) that help the aircraft fly. Here, propel, is a verb. It means to push or move something forward, usually with a lot of force.

Ex: The spectators([spɛkˋtetɚ]n.觀眾) gathered around as they watched the space shuttle(太空梭) propel into space(太空).

3. conserve [kənˋsɝv] (v.) 保護；保藏；保存；保留；節約
When we try to conserve something, we try not to let something go to waste, get damaged, or change in any way. This can be especially important when talking about natural resources and wildlife(野生動物).

Ex: With these donations([doˋneʃən]n.捐款) we will be able to conserve the endangered([ɪnˋdendʒɚd]a.瀕臨絕種的) species living on the island.

And, in order to conserve our energy, how about we call it a day(收工) for now. But before we part(分別v.) ways, have you ever given free diving or any other water sports a try? It’s gotten very popular within the past year, as people resort([rɪˋzɔrt]v.訴諸,求助) to finding ways to entertain(v.娛樂) themselves due to the pandemic making traveling much more difficult. What are your favorite places to go for a swim(n.游泳) and how long are you able to hold your breath underwater? Leave a recording and a comment below! Bye-bye!

■ resort to sth (phr.) = to make use of something, especially something bad, as a means of achieving something, often because there is no other possible solution
（別無辦法的情況下）訴諸，依靠，採用
+I had to resort to violence/threats to get my money.
為了拿到我的錢，我被迫訴諸暴力／採取威脅的手段。

☺Its large surface area displaces a lot of water, propelling him forwards with minimal effort, thereby conserving oxygen.
單片分鰭式蹼鞋大大的表面積可排開大量的水，讓泳者只要費一點點的力氣就可以往前推進，因而節省了氧氣的消耗。
【心得】在陸地上我都會偶爾感到缺氧了，我想我還是乖乖待在陸地上好了:p
■displace [dɪsˋples] 移開；迫使(人)離開；取代、替代；撤換；把…免職；排(水)
■propel [prəˋpɛl] 推進、推；推動；驅策、激勵
■conserve [kənˋsɝv] 保存；保護；節省；用糖保存、將…做成蜜餞
糖漬食品、蜜餞

逐字稿：
How’s it going, VoiceTubers? Are you guys getting ready for warmer weather, maybe a trip to the beach, and some fun down in the water? It’s a great way to get you cooled off, and swimming has tons of health benefits. However, as summer approaches and more and more people decide to take on water sports like free diving, we should probably be aware of the dangers that come along with this breath-holding activity. The video mentions words like “blackout” and oxygen starvation” - nothing I’d want anyone to experience. So, be sure to stay safe and stay informed, but let’s take a closer look at today’s sentence.

Its large surface area displaces a lot of water, propelling him forwards with minimal effort, thereby conserving oxygen.

它的大表面積可排出大量的水，以最小的力氣推動著它前進，從而節省了氧氣。

Pronunciation tips:
Surface (sur-fuss, no long ‘a’ sound here)
a lot of 連音
forwards
effort
oxygen

I picked three words to look at today. How about we start with...

displace: v. [dɪsˋples] dɪˈspleɪs 移開；迫使

To displace something means to force it out of its original position. It is moved to another location. This can also apply to people or animals. One someone is displaced, they are forced to move or find a home in another place.

Example: The construction of this dam will displace hundreds of families in this area, leaving them with no other choice but to move to the outskirts of the city.
這個水壩的工程會迫使上百個家庭遷離本區，他們除了搬到城市的郊區外別無他則。

the outskirts: n. ˋaʊt͵skɝts ˈaʊt.skɝːts The area or region outside or on the edge of a city.
A common reason for people to be displaced can also be caused by war and political unrest.


propel: v. [prəˋpɛl prəˈpel 推動

Maybe you’ve heard the word ‘propeller’, which are often found on smaller airplanes, or helicopters - the spinning blades that help the aircraft fly. Here, propel, is a verb. It means to push or move something forward, usually with a lot of force.

Example: The spectators gathered around as they watched the space shuttle propel into space.
觀眾聚集了起來目送太空梭向太空推進。

Great! One more word to go.

conserve: v. [kənˋsɝv] kənˈsɝːv 保護；節省
When we try to conserve something, we try not to let something go to waste, get damaged, or change in any way. This can be especially important when talking about natural resources and wildlife.

Example: With these donations we will be able to conserve the endangered species living on the island.
有了這些募款，我們就能夠保護島嶼上瀕臨絕種的生物。

And, in order to conserve our energy, how about we call it a day for now. But before we part ways, have you ever given free diving or any other water sports a try? It’s gotten very popular within the past year, as people resort to finding ways to entertain themselves due to the pandemic making traveling much more difficult. What are your favorite places to go for a swim and how long are you able to hold your breath underwater? Leave a recording and a comment below! Bye-bye!

#慢速、中速、快速
#等待暑假....
～～～～～～～～～～～～～～
It’s large surface area displaces a lot of water, preparing him fours with minimal effort, nearby conserving oxygen.
較大的表面積可以排出大量的水，使人花最小的力氣就能推動前進，從而節省了氧氣。

Day316

這種運動對年齡漸長的我，就算了XD

"Its large surface area displaces a lot of water, propelling him forwards with minimal effort, thereby conserving oxygen."

[Day 62]

Its large surface area displaces a lot of water, propelling him forwards with minimal effort, thereby conserving oxygen.
它的大表面積可排出大量的水，以最小的力氣推動著它前進，從而節省了氧氣。

https://tinyurl.com/y8fy7vj3

Thank Wen and every friend who listens to my recordings.

#Day_1039
Its large surface area displaces a lot of water, propelling him forwards with minimal effort, thereby conserving oxygen.
它的大表面積可排出大量的水，以最小的力氣推動著它前進，從而節省了氧氣。

游泳啊，還是不會

_07th_Mar_2021_CAD

Its large surface area displaces a lot of water , propeling him forwards with minimal effort , thereby conserving oxygen.#134 2021.03.08 03:13