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
16:31
Educational
Introduction to the immune system
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
this DOPAMINE based routine got me EASILY ADDICTED to studying
B1
10:09
GOLDFINGER | Bond faces off against Oddjob
B1
3:03
Making Of MISSION IMPOSSIBLE: THE FINAL RECKONING - Best Of Behind The Scenes & Stunts | Tom Cruise
B1
18:50
HBO Chernobyl, Valery Legasov vs KGB Chairman Charkov -- Episode 5 -- FULL HD
B1
4:21
Michael Learns Street Talk - The Office US
B1
1:55
Osmosis from Elsevier
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
