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
B1 中级
英语
2:47
Educational
Environmental Health
学习统计
B1
CEFR 等级
5/10
难度
评论 (0)
登录后评论
还没有评论。成为第一个分享想法的人！
互动模式
测验
正确！
不太对。
正确答案：
相关视频
Toy Story (1995) - Final Scene 1080p
B1
2:58
10 Best Places to Visit in Canada - Travel Guide
B1
13:44
Vsauce Recalls Taking Ayahuasca
B1
24:05
Walk around in a 3D splendid house from the ancient Pompeii
B1
2:45
"Alright, let's just get started before my headache gets any worse." Captain Janeway
B1
4:04
Global Health with Greg Martin
测验
正确！
不太对。
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
