n.【U】危险

n.【C】危险物（或人）；威胁

The operation is a success and now the patient is out of danger. 手术成功了，病人现在已脱离危险。

Violent criminals like that are dangers to society. 那种暴力罪犯对社会是一种危害。

A gun could be regarded as a danger when it's in a criminal's hand. 当枪在罪犯手里的时候就成为危险物品了。

But there is a real danger facing this important ecosystem. 但是这个重要的生态系统正面临着严重威胁。

The village was evacuated because of the danger of a flood. 由于洪水的威胁，村里人都已撤走了。

danger的基本意思是“危险”,指受到威胁的状态或事实,也指这种威胁的原因或来源。danger所指的“危险”一般是预想中可能发生的,但不一定不可避免或已迫在眉睫。

泛指“危险”时, danger是不可数名词,指具体的“危险”或“危险物”“可能造成损伤、疼痛等的人”时,是可数名词。

danger如有非谓语动词修饰时,后接“of+动名词”,不接动词不定式。