on her knees

• adj. 跪着(在严重的状态中)

on her knees的用法和样例：

例句

1. The blood had congealed round the cut on her knee.
   血液在她的膝盖伤口周围凝固了。
2. The little girl went down on her knees and put her doll to bed.
   小女孩跪了下来把洋娃娃放到床上。