I was very concerned about them breaking out [south] into Pakistan, because I knew, if they did that, containing this thing would be a significant problem.

我很担心他们会(从南边)突围到巴基斯坦，因为我知道如果他们做到这点的话，问题会变得一发不可收拾。

youdao

Nobody is watching, and if they happen to be, they are far less concerned with what you are doing and much more focused on what you are thinking about them.

没有人看，如果他们在看，他们更少关心你在做什么，更专注于你怎么看他们呢。

youdao

An overwhelmingly large number of men are concerned about the size of their penis even though what they have is more than enough for them to be great in bed.

尽管很多爷们裤裆里那玩意儿的大小其实并无碍于他们在床上的良好表现，可他们都很在意，且有此观念的男人其数量还大得惊人。

youdao

You could be concerned about leaving them a lump sum gift because they might use it irresponsibly.

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The cost of regulations and their ROE are causing them to be concerned about scalability of their systems, which are now almost entirely internal.

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They appear to be more concerned about America attempting to somehow influence them than about the dangers coming from the elements mentioned above.

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