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
葡萄牙语
8:17
Educational
Wave Characteristics - Period, Frequency, Wavelength and Propagation Speed
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
Romantismo no Brasil | Poesia e prosa
B1
7:08
Patologia geral - Introdução à patologia [Atualizado 2023]
B1
14:02
How does water injection work for combustion engines?
B1
23:51
NELORE, O OURO BRANCO DO BRASIL! | RICHARD RASMUSSEN
B1
13:20
Wiz Khalifa Feat. Charlie Puth - See You Again (Tradução) (Clipe Oficial Legendado)
B1
3:48
Maurício Física
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
