n.

1. 危险[U][（+of/to）]
   He is in danger of losing his job if he goes on like this.

   他再这样下去会丢掉工作的。

   The wounded policeman is now out of danger.

   受伤的警察已经脱离危险。

   That's where the real danger lies.

   那是真正的危险所在。

2. 危险（物）；威胁[C][（+of/to）]
   They regard overpopulation as a danger to society.

   他们把人口过剩看成是对社会的威胁。

n.

1. the possibility of suffering harm or injury.
   ▸a cause of harm or injury.
2. the possibility of something unwelcome or unpleasant:
   there was no danger of the champagne running out.