be composed of例句

It may be composed of allelochemics such as alkaloids or terpenes.
它可以由异种化合物例如生物碱或萜稀组成.

The shop name shall be composed of more than two Chinese characters.
字号应当由两个以上的字组成.

All matter is found to be composed of atoms and molecules.
(人们)发现所有物质都是由原子或分子构成的.

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