on your knees

• adj. 跪着(在严重的状态中)

on your knees的用法和样例：

例句

1. If you wanted something to eat after nine o'clock in that restaurant you almost had to go down on your knees and beg for it.
   9点钟后你想在那家餐馆吃点东西，你几乎得低三下四地求他们才能办得到。