Could you tell us how long we're going to be away?为什么用how long 而不用how soon?
问题描述：
Could you tell us how long we're going to be away?为什么用how long 而不用how soon?
答
how soon是对将来的时间提问，而这里是一个持续的状态，已经发生，不能用HOW SOON～
答
how long 问多久,how soon问多快,不一样的
比如说你三天后要去国外十日游
同行朋友问你could you tell us how long we're going to be away?你回答For 10 days.
如果问could you tell us how soon we're going to take off?你回答In 3 days.