求翻译：wu dong has a good friend. his name is peter. he is from the u.s.a. wu dong and peter are in the same class. they go to school five days a week . they stay at home on sunday and saturday. peter likes china and chinese food. he like rice cakes very much. at school they play table tennis after class. wu dong and peter likes making things. now they are making a plane .they like flying planes on sunday morning. peter speaks english a little chinese. wu dong speaks chinese and a little english. they teach each other.是什么意思？

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