This indicated that the man before whom that door had just opened had not a hook but a key.

这说明这个开门的人用的不是弯钩，而是一把钥匙。

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The Securities and Exchange Commission (SEC) frets that looser rules will let key derivative traders, such as hedge funds, off the hook.

证券交易委员会（简称证交会）担心太宽松的条款可能会让像对冲基金这样的主要衍生物的交易者漏网。

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You can tap into key moments in that lifecycle by implementing one or more of the lifecycle hook interfaces.

你可以通过实现一个或多个生命周期钩子接口，切入到生命周期中的关键时间点。

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His shooting touch was so deft he could hit the sky hook anywhere from the middle of the key to the baseline, from 5 feet or 20 feet.

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