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1·The police suspected Bill of doing it.

警察怀疑那件事是比尔干的。

2·The stranger was suspected in the bank robbery, but the police gave him a clean bill of health.

这陌生人有抢劫银行案的嫌疑，可是警方认为他与该案无关。

3·The police suspected that Bill did it.

警察怀疑是比尔做的。