我们有时需要一些事来帮助我们打起精神并且让我们感觉好点儿。

We need a little something to help sometimes, to uplift us and make us feel better.

《柯林斯英汉双解大词典》

有时需要清除耳垢。

Earwax removal is sometimes necessary.

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让她感到自豪的是，一些雕塑甚至得以重新展出，尽管有时需要置于保护罩之下。

She is proud that several sculptures have even gone on display again, albeit sometimes beneath protective cases.

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So, somehow we have to figure out a way to take orbitals that are non-symmetric, and convert them into orbitals that are symmetric.

所以有时我们需要找到一个方法,让不对称的轨道，转变为对称的轨道。

麻省理工公开课 - 固态化学导论课程节选

Exactly, so you might have been thought especially in years past to defragment, so to speak, your hard drive once in a while.

你可能认为需要进行,碎片整理这种操作，也可以说硬盘驱动器有时需要你这么做。

哈佛公开课 - 计算机科学课程节选

Every statesman must confront new and sometimes extreme situations that require inventiveness and creative action.

每一位政治家都必需面临,新的及有时是极端的情势,而那需要有创造力及具创意的行动。

耶鲁公开课 - 政治哲学导论课程节选