1. on fire adv. 着火;起火;在兴头上;非常激动
eg. There were daily strikes and demonstrations, and buildings were on fire.
每天都有罢工和示威游行,而建筑物都着火了。
eg. Clare stands up, still pondering the board, and does a little dance, hopping around like her pants are on fire.
克莱尔站起来,仍然在位这盘棋而沉思,并且小小的跳了一会,好像是她的裤子着火了一般。
2. put in danger 使遭受危险
eg. He lied and we were all put in danger.
他撒谎,我们都将处于危险之中。
eg. She is an example of how an internet addiction can put in danger your life, as any other does.
约翰娜只是一个网瘾会把你的生活置于危险之中的个例。