down后面加什么,fall
house looked as if it was about to fall down.房子看起来好像就要倒塌似的。
the blocks are placed off-centre, they will fall down.积木如果搭得中心错位就会倒塌。
es often fall down when they are learning to walk.小儿学步时常会跌交。
house looked as if it was about to fall down.房子看起来好像就要倒塌似的。
the blocks are placed off-centre, they will fall down.积木如果搭得中心错位就会倒塌。
es often fall down when they are learning to walk.小儿学步时常会跌交。