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 mole...

由…组成，由 ... 组成...

be composed of的音标：be composed of的英式发音音标为：[bi: kəm'pəʊzd ɔv]be composed of的美式发音音标为：[bi kəm'pozd ʌv]...