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
5:13
Educational
Introduction to Innate Immunity
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
Obi-Wan vs Darth Vader (Epic Full Fight 4K) | Obi-Wan Kenobi Episode 6
B1
8:54
YourClassical Storytime: An Irish Folk Tale
B1
10:34
Why Lady Whistledown Against Daphne
B1
6:05
How to listen and make notes in English: Study Skills
B1
4:15
"I Like This One" Scene - Avengers: Endgame (2019) Movie CLIP HD
B1
1:14
Professor Dave Explains
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
