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用这种方法控制你的狗不起作用。This is an ineffective method of controlling your dog.既然对你起作用，这就是个明智的决定。This was a good decision inasmuch as it worked for you.该卫星自从两年前发射以来一直没起作用。The satellite had been inactive since its launch two years ...

“起作用”的拼音为：qǐ zuò yòng ...