你知道吗

Are you aware that there is a difficulty?

有困难吗?

Carroty, do you know whatSpring Festival is?

小萝卜，春节是什么吗？

A drop of water is very infinitesimal,but do you know many a pickle makes a muckle's truth?

一滴水是十分微小的，但是积少成多的理吗？

You ought to stop smoking, you know. For one thing, you’re damaging your health, and for another, you can’t afford it!

吗？应该戒烟。一来，在损害自己的健康，二来，也抽不起！