How often

英 [haʊ 'ɒfn] 美 [haʊ 'ɔ:fn]

• 多久一次

how often的用法和样例：

例句

1. How often do you go to church?
   你隔多久去做一次礼拜?
2. How often (ie At what intervals) do the buses run?
   公共汽车隔多长时间一班?
3. How often do you hear from your sister?
   你多长时间接到你姐姐一次信?
4. How often do lions breed?
   狮子多长时间产一次仔?
5. How often do you have a bad back?
   你多长时间腰痛一次?
6. How often do you go swimming?
   你多久去游泳一次?
7. How often do you go there?
   你多长时间去一次那里？
8. How often do you eat out?
   你隔多久在外面吃一次饭？