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
互动模式
测验
正确！
不太对。
正确答案：
相关视频
Adaptive (Acquired) Immunity - Immunology - Biology 🧬 of Immune System
B1
23:15
How do carbohydrates impact your health? - Richard J. Wood
B1
5:11
PM Jacinda Ardern on 'theme' in NZ local body election results | AM
B1
11:46
The Dowager's Finest Comebacks | Downton Abbey
B1
8:26
Benedict Cumberbatch and Jonny Lee Miller | Frankenstein Clip | National Theatre at Home
B1
1:54
flashko01
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
