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
2:00
Educational
WHO: Preventing disease through healthy environments
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
Weekend Update: Marcello Hernández on the MLB Playoffs - SNL
B1
3:37
Sir Alan Tommy Lascelles advises The Queen
B1
2:18
US wildfires destroy towns, turn deadly as they spread across Pacific Northwest
B1
1:57
Mad Max: Fury Road (2015) - The chase begins (1/10) (slightly edited) [4K]
B1
4:41
Star Wars - Master Yoda VS Darth Sidious 4K
B1
4:55
World Health Organization (WHO)
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
