be made of

• 由 ... 组成； 由 ... 构成

be made of的用法和样例：

例句

1. People used to test coins that were offered in payment, to see if they rang true or were made of false metal.
   过去人们在收到付款时，常常试扔一下硬币，听听其声音是真的，还是由假金属制作的。
2. The fence was made of posts joined together with wire.
   篱笆是以铁丝连接起木桩而构成的。
3. Light often behaves as if it were made of particles.
   光常常表现出好象它是由粒子组成似的。
4. The doors of the palace were made of beaten gold.
   宫殿的门由金箔做成。

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be made of的相关资料：

近反义词

【近义词】

• be made up of 由 ... 构成
• be made in 在 ... 生产或制造...
• be made from 由 ... 制造