Either he had slipped the ropes in a matter of seconds or his hands had been free all along.

要么就是他刚才一瞬间从绳子里挣脱了，要么就是他的手一直就没被绑起来。

youdao

If somebody sneezes into his hands, those germs will be passed on to other people, or other objects that people touch.

如果有人对着自己的手打喷嚏，这些细菌会传染给其他人，或者其他人接触的其他物体。

youdao

If one person lets go of his or her hands, the molecule changes color.

如果任何一个人放开了他(她)的手，这种分子的颜色就会改变。

youdao

For example, a murderer might have blood or dirt on his or her hands which leaves prints on the wall.

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