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How  to pronounce

United States:

http://www.youtube.com/watch?v=zIaP7tvESnM

yesterday:

http://www.youtube.com/watch?v=56quf8OdX6Q

university:

http://www.youtube.com/watch?v=Zr1p--8BxAA

cardinal numbers (基数):

0-10

http://www.youtube.com/watch?v=73mLHCUQAsU

11-19

http://www.youtube.com/watch?v=rzChSD1zXBY

20-1,000,000,000

http://www.youtube.com/watch?v=1fkrgZHn3JA

ordinal numbers (序数):

http://www.youtube.com/watch?v=x3dLxhIkv6c

*これは役に立つ

How to introduce yourself:

http://www.youtube.com/watch?v=oWP9Riq-ZBg