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 介 关于,围绕,大约 In this book,Marco Polo wrote a lot about China.马可·波罗在这本书里写了很多关于中国的事情。—How many dogs has he got? —About 20.—他有多少只狗? —大约20只。●talk about...谈论有关…的事●worry about...为…担心talk/worry......(本文共 164 字) [阅读本文] >>