由……组成 英语怎么说 （2种说法）
问题描述：
由……组成 英语怎么说 （2种说法）
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consist of be made up of be composed of
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Composed by the ... ...
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it's made of....
consist of....
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be made up of
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make up of
eg.We think of a nucleus as make up of neutron and proton.
be composed of
eg.Concrete is composed of cement,sand and gravel mixed with water.