Log in
Channel
Levels
Pronunciation Challenge
Saved
Search Vocabulary
About Alex Kidd results of 2,532
找不到喜歡的影片嗎？你也能自己匯入影片喔
Filter
Relevance
53:43
Mitt Romney on Leadership: Know Your Values
482
A2
82:33
The Molecular Mechanism of Synchronous Neurotransmitter Release at Synapses
293
B2
1
...
52
53
54
55
56
