您要查找的是不是：
- how often do you wash the car? 你多久洗一次车?
- How often do you wash your hair? 你多长时间洗一次头？
- Question: How often do you wash all food thoroughly before cooking, especially seafood? 问题:在烹调食物之前,你有几经常会彻底洗净所有的食物,尤其是海鲜?
- How long do you wash the head once? 你多长时间洗一次头？
- How often do you have your car greased? 你多久才给小轿车上一次油？
- How often do you go to the library? 你多长时间去图书馆一次？
- A: How often do you water the flowers? 你多久给花浇一次水?
- How often do you measure the customer satisfaction? 贵公司客户满意度衡量的频率?
- How often do you surf the Internet? 你多长时间上网冲浪一次?
- CB: How often do you feel like you own the game? 你是否经常觉得你主宰了比赛?
- How often do you take your pet to the vet? 你多长时间带它看一次兽医?
- How often do you have a bad back? 你多长时间腰痛一次?
- How often do you hear from your sister? 你多长时间接到你姐姐一次信?
- How often do you clean the roon? 9你多久打扫一次房间？
- How often did you go swimming in the university? 你在大学时多久去游泳一次?
- How often do you hear from your brother? 你多久接到你兄弟一次信？
- How often do you have the flights to Bonn? 去波恩的飞机几天一趟?
- How often do you hear from you sister? 你多长时间收到你姐姐一封信?
- How often do you shampoo your hair? 你多久用洗发剂洗一次头?
- How often do you visit your grandparents? 你多久看望爷爷奶奶一次?
