fall behind落后 fall over one's feet 跌跤 fall down掉下.跌倒 fall back撤退.后退 1) Babies often fall when they are learning to walk. 2) Our team seems to have fallen the others. 3) As soon as the enemies fell , the people returned to their village. 4) She fell the bench and had her leg broken. (down, behind, back, over ) 【查看更多】
