has down 和had down的区别

has down 和had down的区别 quiet down 和cool down的区别 since 是不是经常和 has down 连用? Because the shop ,all the T-shirts are sold out at half price.A.has closed down B.closed down C.is closing down D.had closed down has down this by down down along和down的区别 write it down和write them down的区别 put sb down 和look down on sb的区别 look down upon和look down on的区别~ 关于fall down/off 和cut down/off的用法 down to earth和down-to-earth的区别是什么 look down on和look down at的区别? 英语shut down 和shut down的区别是什么 英语：fall down 和 goes down 的区别? put down as 和put down for的区别 note down和take down的区别如题