fall on one's knees是什么意思

　　fall on one's knees

　　v.跪下; 乞求; 拜倒; 双膝跪下;

　　[网络]乞哀告怜; 屈膝;

　　[例句]The police lets thief people fall on one's knees, thief people be
afraid of the gun in constabulary hand, each crouchs half genuflect partly.

　　警察让小偷们跪下，小偷们怕警察手里的枪，一个个都半蹲半跪。