They may not return calls and resist talking about their feelings.

他们可能会不回电话，拒绝谈论自己的感觉。

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If the hamburger is not what the customer expected, they may not return.

如果顾客不想要这个汉堡了，他们不能要求退换。

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One reason its deficit has risen so quickly is that those revenues have evaporated. They may not return again for some time.

这么快导致亏空的原因是这些税款大大缩水，也许恢复还得需要一段时间。

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Those who embark on the quest for knowledge of the best regime may not return the same people that they were before.

那些开始追寻最优政体知识的人,可能最后,都完全地变了一个人。

耶鲁公开课 - 政治哲学导论课程节选

Inverse ETFs offer a way for investors to bet on a fall in an asset class but they may not always deliver such a return over an extended period.

ECONOMIST: The risks created by complicating a simple idea

They may not have the highest returns, but they may have the highest likelihood of a very good return.

FORBES: Magazine Article

The patients may not necessarily be able to return to where they received the treatment.

BBC: Treatment abroad: Greater choice, greater risk