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
How to Make The Perfect Study Timetable { study tips + productivity guide }
B1
5:01
Introduction to Perfect Competition | Economics Explained
B1
6:19
The Most TERRIFYING Murder Case Ever Told | True Crime Documentary
B1
22:48
Songs of the Servant | 8 Catholic & Christian Hymns of Service | Choir w/ Lyrics | Sunday 7pm Choir
B1
22:52
Stranger Things 2x01- The Boys Get Caught Stalking Max [HD] (with English Subtitles)
B1
1:08
CBC News
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
