In a pre-industrial world there were, at most, some 2,000 different trades out there.

在工业革命前，约有 2000 个不同的行业。

Mr Trump's protectionist bent may make it hard for emerging markets to trade their way out of trouble.

特朗普的保护主义倾向可能让新兴市场很难走出困境。

So trade out a behavior for the context that seems to be quite triggering for that habit.

因此，用一种行为来换取似乎相当触发这种习惯的背景。

It doesn't work to trade out bad behaviors with behaviors that don't give you the same reward.

用没有给你同样回报的行为来交换坏行为是行不通的。

Let's trade out this photo for a new one, which shows the true size of Tokyo as seen from the sky.

我们把这张照片换成一张新的照片，这张照片显示了从空中看东京的真实大小。

Started trading out of her apartment, clawing her way to the top of a field notoriously dominated by men.

从在公寓里做股票，一步步发展壮大，登上了一个众所周知由男性主导的行业的巅峰。

He was able to take on the persona of characters with ease, trading out one accent or dialect for another like he was born to do it.

他可以轻而易举地刻画出一个角色，还能转换口音或方言，好像天生就会似的。

Some people will try to trade out smoking for chewing a piece of gum or eating a celery stick, and that's not gonna work because you're not getting the same reward out of that that you were from smoking, for example.

有些人会试图用嚼一块口香糖或吃一根芹菜棒来代替吸烟，这是行不通的，因为你没有从吸烟中得到同样的回报。