do for

英 [duː fɔː(r)]

美 [duː fɔːr]

毁灭; 完蛋

柯林斯词典

PHRASAL VERB 毁灭;完蛋
If you say that youare done for, you mean that you are in a terrible and hopeless situation.
1. We need his help or we're done for, dead and gone, lost.
  我们需要他的帮助，否则我们就完蛋了，死定了，彻底从人间蒸发了。

There's one thing you can do for me. But keep it to yourself.
有件事你能帮我做。但你要保密。
What is alternative health care? What can it do for you?
什么是另类医疗？它能为你做些什么？
What did he formerly do for a living?
过去他靠什么度日？
Room service, what can I do for you?
客房服务部，能为您效劳吗？
Doing so is a nice thing to do for yourself and for those closest to you as well.
这样对你自己和亲近的人来说也是件好事。
She wants to be loved for who she is, not because of what she'll do for you.
她希望她被爱是因为她是谁，而不是她能为你做什么。
Smith: Hello, good morning, this is Smith speaking, what can I do for you?
史密斯：早上好，我是史密斯，能为您做点什么吗？
We need his help or we're done for, dead and gone, lost.
我们需要他的帮助，否则我们就完蛋了，死定了，彻底从人间蒸发了。
Two friends after work are deciding on what to do for dinner.
两个朋友下班后正在决定吃什么晚餐。
If there's anything I could do for him, I would.
如果需要我帮他做点什么，我会帮忙的。