Learn to ask for help when needed.

学会在需要的时候寻求帮助。

youdao

youdao

Some people think drones can only be used by governments to help when needed.

一些人认为只能由政府在需要的时候使用无人机提供帮助。

youdao

Is there any question that, by the laws of war, property -- both of enemies and friends may be taken when needed.

VOA: special.2009.10.08

So, our bodies are capable of making antibodies that are tuned for all the potential antigens that we come into contact with, That's amazing that we have this capacity to respond and you respond only when needed.

所以 我们的身体具有制造抗体的能力,这些抗体对于各种潜在抗原具有特异性,我们具有只在需要时做出,免疫反应的能力 这太让人惊叹了

耶鲁公开课 - 生物医学工程探索课程节选

I just needed one more credit hour when I was going to school,

我上学的时候就差一个学分，

攀岩的刺激 - SpeakingMax英语口语达人

"So if the rains don't come when needed, you don't lose an entire crop, " Ehrhart said.

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It is then parked by a machine into a store and can be called when needed.

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In life, we are big-hearted and ever willing to lend a shoulder when needed.

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