Call me if you need any help—I'd be happy to oblige.

若有需要，尽管给我打电话。我很乐意帮忙。

《牛津词典》

Whenever you need help, just call me.

无论何时你需要帮助，尽管打电话给我。

youdao

Please call our staff when you need help.

如果您需要帮助，请打电话给我们的工作人员。

youdao

No, we call that work positive work. All right, so that means we need to put a negative sign right here, by convention.

历史上有过不同的习惯，这里我们规定,如果环境对系统做功。

麻省理工公开课 - 热力学与动力学课程节选

If need be, occupy a throne, Where nobody can call you crone.

如果需要，占领一个王位，哪里没人会叫你老妇人。

耶鲁公开课 - 现代诗歌课程节选

It's kind of ironic that we put this in the same lecture as we talk about atomic radii, which we also call r, but they're two different r's, so you need to keep them separated in terms of what you're talking about.

有点讽刺的是,我们在同一堂课里还讨论过了原子半径，它也是用，r，表示的，但是它们具有不同的意义，因此大家需要注意区分它们,弄清楚我们讨论的是哪一个。

麻省理工公开课 - 化学原理课程节选

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