substituted造句

She was dancing while someone substituted at the piano.
她在跳舞,别人代她弹钢琴.

Glass blocks are sometimes substituted for ordinary bricks.
有时,玻璃砖被用来代替普通的砖.

He substituted for the worker who was ill.
他顶患病的工人干活.

相关问题
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    She was dancing while someone substituted at the piano.她在跳舞,别人代她弹钢琴.The synthesis methods of melatonin, related tryptaminetryptamine derivatives and substituted indoles are discussed.从人工合成的角度综述了美乐托宁及有关化合物色胺、色胺衍生物及吲哚衍生物的制...
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