https://online2.tingclass.net/lesson/shi0529/0009/9500/5_3.mp3
https://image.tingclass.net/statics/js/2012
5-3 報盤有效期
3句英文任你選
For how long does your offer remain open?
報價有效期多長?
We will keep our offer open/valid/firm/effective/good for one week.
我們報價有效期為一周。
Our offers are for three days.
我們的報盤三天有效。
半個句型要記牢
For how long -(多長)
Tip: How long用來提問某動作或狀態(tài)發(fā)生的時間長短,與延續(xù)性動詞連用,對表示"一段時間"的短語 (three days , half an hour, for 20 minutes等)提問時用,后面如有介詞for,應(yīng)將介詞for提前。