Don't just sit by while the other children are all busy.

别的孩子都忙着,你不要闲着袖手旁观.

《简明英汉词典》

Don't just sit idly by while the others are all busy.

别人都在忙,你不要坐着不动.

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His mother and sisters were all busy and they didn't say anything.

他的妈妈和姐妹都很忙,她们听了不说一句话.

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I usually get together with my family on weekends, because we are all busy on weekdays.

我通常在周末与家人聚会, 因为我们都很忙.

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They were all busy, rushing about the motherboard.

它们在母板周围穿梭不停.

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