1. 我每天至少要把廚房地板擦洗一次。
   I have to mop the kitchen floor at least once a day.
2. 這些數(shù)據(jù)應(yīng)該每星期更新一次。
   The data should be updated once a week.
3. 郵車每周只到這個偏僻的村莊一次。
   Mail comes to this remote village only once a week.
4. 我大約兩星期見他們一次。
   I see them about once a fortnight.
5. 這本刊物兩個月出版一次。
   The journal makes its appearance once two months.
6. 一次就夠了，別再干了。
   Once is enough, never again.
7. 我妹妹每周去一次美容院。
   My sister goes to a beauty parlour once a week.
8. 垃圾工每周來收一次垃圾。
   The dustman comes once a week to collect the rubbish.

一的英語翻譯：

次的英語翻譯：