If he can do this in a foreign country, why can't we do it from home with a foreign language?

他在外国都能这样创造一个母语环境，我们在家为什么就不能自己创造一个外语环境呢？

youdao

Why can't the application server do this for me?

为什么应用服务器不能这样做呢？

youdao

Of course, having a small percentage of the electorate [voting this way] doesn't pose too much risk, but we now have the public asking, 'If they can do it, why can't we?

当然，存在一定比例的这种投票方式并不会带来太多风险，但现在有公民们提出问题：'既然他们可以这么做，我们为什么不可以？

youdao

Why can't they do the same with this?

BBC: Wild animals to be banned from circuses

This morning they politely explained that they can't really do "why" and "how come" either.

BBC: 2011: The Year of Sharp Decreases