知不知道我的儿子危在旦夕？

Don't you know that my son's life is in danger?

现在利比亚人民的未来危在旦夕。

The stakes in Libya are obviously high for the future of the Libyan people.

因为他错误决定，让一大笔钱危在旦夕。

There is a great deal of money at stake because of his poor decision.

飞机没有了，大人没有了，人类千辛万苦建立起来的文明世界危在旦夕。

There are no plane and no grown-ups, and the civilized world, which is built by human beings with innumerable trials and hardships, is on the verge of destruction.

如果你找不到那把小螺丝刀，你孩子那带着发光二极管的玩具可就危在旦夕了。

Your children's toys equipped with LEDs are in extreme danger if you cannot ever find that tiny screwdriver.