垂危的英文：
in danger

The aspect of the nation is in imminent danger
国势垂危

A hospice for the terminally ill
收治垂危患者的医院.

It was put about that he was dying.
谣传他已垂危。

(of a disease,etc)make sb unable to lead an active life;make sb seriously ill or kill sb
(指疾病等)使某人生活不能自理,使某人垂危或丧命

"After the surgery, the patient became very sick and her life hung in the Balance for nearly a week."
手术后,那个病人非常虚弱,将近一个星期他的生命在垂危中

With the medicines the Bettie carried to Berryville, Dr. Osborne brought Bedell through the crisis
有了贝蒂蒂回贝利维尔的药品，奥斯本医生才将比德尔从垂危之中拯救了过来。

to court danger
招致危险

Be ware of danger!
当心危险！

Danger steadies some people.
有的人在危险时候反而坚定。

Dumb dogs are dangerous.
不叫的狗最危险。

Dumb dogs are dangerous
不叫的狗咬人