in danger与dangerous 的意义及用法区别

区别一针见血地说就是:

in danger,事物本事对别人没威胁,但事物出于危险的环境下

dangerous事物本身对别人有威胁,别人说这个事物是危险的

实例:

We cannot find the kid. It's dark, she must be in danger now.小孩找不到了,天黑了,她处境危险。

Swimming alone can be quite dangerous.

独自游泳很危险。