Please explain to him what the trouble is.

请向他说明问题的所在。

youdao

What the trouble?

有什么困难吗？

youdao

I got close enough to see what the trouble was.

我凑过去，看看是出了什么麻烦事。

youdao

And scientists often have trouble explaining what they do in language that the public can understand.

VOA: special.2010.05.14

But I was convinced I'd hear the click-click-click-click-click which is what tells you you're in trouble.

我总会觉得很紧张，我不知道这是为什么,虽然我从来没有接触过放射元素。

麻省理工公开课 - 化学原理课程节选

So the Romans, for example, outlawed volunteer fire departments, in local places, because they were afraid that volunteer fire departments could be a place where locals, especially maybe lower-class locals, could get together and then start gossiping about what they could do to cause trouble for the Romans.

所以罗马人会，比如，会驱逐当地志愿消防部门，因为他们担心志愿消防部门,会成为当地人，尤其是下层阶级集会的场所，在那谋划如何,给罗马人制造麻烦。

耶鲁公开课 - 新约课程节选

And here again, what got Romney into the trouble was his war room.

CNN: Mitt Romney's painfully bad week

As for the FDIC-insured commercial banks that ran into trouble, the record is also clear: what got them into trouble were not activities restricted by Glass-Steagall.

FORBES: Why The Glass-Steagall Myth Persists

But the very reason it was able to pass in the Senate is what's going to cause trouble in the House, because there are any number of Republicans there who don't like the fact that it's in a budget bill.

NPR: ANWR Community Split on Oil Exploration