B2 中高級 美國腔 1360 分類 收藏
開始影片後,點擊或框選字幕可以立即查詢單字
字庫載入中…
回報字幕錯誤
Beavers are vegetarians.
They gnaw through bark to eat the sugary layer underneath.
They've been gnawing through forests for 20 million years.
Felling trees with your teeth takes great strength, skill, and patience.
One technique is to slice halfway through and let the wind do the rest.
The beavers' incisors are strengthened with iron, which makes them orange.
They grow continuously and even self-sharpen.
The pond makes it easier to move around the heavy logs they need to build their dams.
Out of the water, it's a struggle.
Stones help weigh down the base.
The whole family works together, carefully interlocking the timber.
They dredge mud from the pond bottom to seal the dam.
Each pond traps several inches of sediment every year so there's plenty of it.
The young act as apprentice builders, learning the tricks of the trade.
The final results are impressive.
In the Rocky Mountains beaver dams slowly filter billions of tons of water.
The ponds build up soil and nutrients and help prevent floods and droughts.
(Leave it to Beavers, Wednesday, May, 8/7c on PBS)
提示:點選文章或是影片下面的字幕單字,可以直接快速翻譯喔!

載入中…

載入中…

【動物】啃吧孩子!海狸怎麼築水壩? (How Beavers Build Dams | Leave it to Beavers | PBS)

1360 分類 收藏
lauren.huang 發佈於 2020 年 2 月 19 日    lauren.huang 翻譯    adam 審核
看更多推薦影片
  1. 1. 單字查詢

    在字幕上選取單字即可即時查詢單字喔!

  2. 2. 單句重複播放

    可重複聽取一句單句,加強聽力!

  3. 3. 使用快速鍵

    使用影片快速鍵,讓學習更有效率!

  4. 4. 關閉語言字幕

    進階版練習可關閉字幕純聽英文哦!

  5. 5. 內嵌播放器

    可以將英文字幕學習播放器內嵌到部落格等地方喔

  6. 6. 展開播放器

    可隱藏右方全文及字典欄位,觀看影片更舒適!

  1. 英文聽力測驗

    挑戰字幕英文聽力測驗!

  1. 點擊展開筆記本讓你看的更舒服

  1. UrbanDictionary 俚語字典整合查詢。一般字典查詢不到你滿意的解譯,不妨使用「俚語字典」,或許會讓你有滿意的答案喔