once a week

相關對話：

1. We went fishing once a week.
   我們一星期去釣一次魚。
2. Each student has to hand in a composition once a week.
   每個學生必須一星期交一次作文。
3. She writes to her parents once a week.
   她每周給父母寫一封信。
4. My sister goes to a beauty parlor once a week.
   我妹妹每周去一次美容院。
5. Mail comes to this remote village only once a week.
   郵車每周只到這個偏僻的村莊一次。
6. My sister goes to a beauty parlour once a week.
   我妹妹每周去一次美容院。
7. The data should be updated once a week.
   這些數據應該每星期更新一次。
8. The dustman comes once a week to collect the rubbish.
   垃圾工每周來收一次垃圾。