·为什么for sale前用be?

·为什么for sale前用be? be up for sale 和be for sale区别说明 for sale和be for sale的区别还有for selling i believe that this car is for sale这里为什么用介词for not for sale能不能也说成no sale啊?为什么not后加for啊? I believe that this house is for sale.这句话中为什么要用that? for sale ,for rent 用以下形式各造一个句子、、 be for sale be on sale buy sb.sth buy sth to sbbe for sale.be on sale .buy sb.sth .buy sth to sb. be responsible for 后面怎么加be responsible for sale tasks completed 还是be responsible for completing sale tasks 谢谢啦 on sale和for sale的区别 一道词汇应用题,求解吉姆告诉我下个星期那家商店将有一些新的光碟出售.Jim told me there would be some new VCDs ___________ in the shop the next week.这里用on sale 还是for sale两者有什 for sale 造句 for sale 和on for sale是什么意思 not for sale是什么意思 Love For Sale 歌词 house for sale for sale comment on for sale free