If you've ever tried to change a personal habit (nail biting, for example) you know that it's virtually impossible unless you have something else to replace the old behavior.

如果你试着改变自己的某个个人习惯(比如咬指甲之类)，你会知道那基本上是不可能的，除非你能找到其他的事情来替换旧习惯。

youdao

As you already know, it's impossible to avoid every stressful situation.

虽然你已经很了解了，但是避免所有的压力环境是不可能的。

youdao

It's impossible to ignore RSI when you have it. I know, I've had it twice, thanks to knitting and a particularly intense month of freelancing.

当你有这病时，就无法忽视它了。我曾两次得过这个病，就是由于编织和一个月高强度的工作。

youdao

But it's virtually impossible to know how well you'll sleep on a bed by testing it in a showroom.

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"You know the politics of talking to CNN, it's impossible, " he said.

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"It's absolutely impossible to judge the physician's behavior fairly when you know the outcome, " he says.

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