The video owner has disabled playback on external websites.
This video is no longer available on YouTube.
This video cannot be played right now.
Watch on YouTube
Beaver Lodge Construction Squad | Attenborough | BBC Earth
学习统计
CEFR 等级
难度
字幕 (86 片段)
A beaver, one of a family that lives here in this lake
at the foot of the Teton Mountains in Wyoming.
While beavers can get around perfectly well on land,
they are most at home in the water,
where their webbed hind feet and large paddle-like tail
make them powerful swimmers above and below the surface.
Like marmots, beavers feed on all kinds of vegetation,
and eat wood as well as leaves.
And they are accomplished engineers.
This great pond is entirely their own creation.
Only a few years ago,
this shallow, pebbly stream flowed straight down the valley.
Then a family of beavers moved in and built a dam.
The main body of it is built of boulders.
On the downstream side, it's been lined with logs,
some of them big and quite heavy,
and on this side, it's been packed with mud and vegetation.
It's been built so accurately that it is, to within a few inches,
完整字幕可在视频播放器中查看
评论 (0)
登录后评论互动模式
测验
正确答案：
相关视频
Marcello Hernández Makes His Tonight Show Stand-Up Debut | The Tonight Show Starring Jimmy Fallon
MARCH OF THE PENGUINS 2 - Officiele NL trailer / Nú te zien op CineMember!
Puberty Alarm Scene | INSIDE OUT 2 (2024) Movie CLIP HD
These 2 Daily Habits Can Increase Your Happiness Right Now...
hermione granger being your study motivation 📚✨
BBC Earth
测验
正确答案：
观看视频时会出现测验
记忆技巧
来自此视频
免费开始学语言
