at need

基本解释

At need one sees who his friend is.
处困境可以看出谁是自己的朋友。
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He had even at need contrived to aid and multiply the industries of other arrondissements.
在必要时，他还能帮助和发展其他县的工业。
Paul Yock, head of the bio-design laboratory at Stanford University, which develops medical devices, argues that medical-technology giants have “looked at need, but been blind to cost.”
身为开发医疗设备的斯坦福大学生物设计实验室负责人的Paul Yock认为，医疗技术巨头们“看到需要，却看不到成本”。

That needs to be understood. But this time, we need to put the story of emancipation at the center of this narrative, because what really transformed the United States, were not those battles.
So what you gonna see here in United States, especially at university level, is a stronger need for Muslim chaplains.
因此在美国，特别是在大学里面，需要越来越多的穆斯林教士。
普林斯顿公开课 - 人性课程节选
In the first example, you could be at a social gathering and you really feel the need for some nicotine.
在第一个例子中，你可能在一个社交聚会上，你特别想找个地方抽根烟。
Do you mind 课堂 - SpeakingMax英语口语达人

The fiscal commission showed that you need to look at entitlements, you need to look at tax expenditures, you need to look at military spending.
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