He explained how the machine was used.
他给我们讲解这机器怎么使用。
He explained how the machine was used.
那位工人讲解这台机器如何运用。
He explained how the machine was used.
他解释了一下怎样使用那台机器。
He explained how to use this instrument.
他解释如何使用这台仪器。
He explained how to grow corn, hunt and live in the wilderness.
他解释如何种植玉米，狩猎，住在旷野。
He explained to the girl that that was exactly how it was done.
他开始向女孩解释那是如何做到的。
He explained to children how computer works and what it can do.
他向孩子们解释计算机是怎样工作的，能干些什么。
He explained to us how this machine was used.
他给我们解释这部机器怎么使用。
She explained to him how he can start the car.
她向他解释怎样才能启动这辆汽车。
He explained to us how the machine was used.
他给我们讲解了这机器怎么使用。
He explained to us how the machine was used.
他给我们讲解了这机器怎么使用。
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