be on duty

• I ' m not on duty . li lei is on duty today
  我今天不值日。李雷今天值日。
• I ' ll be on duty on the 31st , so now i ' m going to beat it
  我31号要当值,所以现在我要走人了
• Take a seat . come on . - i can ' t , i ' m meant to be on duty
  -坐下吧-怎么行啊，我在看更啊
• How could you do your private business while you are on duty
  你怎么可以在公务时做自己的私事
• Someone is on duty here around - the - clock
  有人在这里昼夜值班。
• Don ' t call me when i am on duty ; call me when i am off duty
  上班时不要打电话给我；下班时再打给我。
• Sorry , i can ' t come with . i am on duty tonight , worst luck
  抱歉,我不能和你一起去,真倒楣今晚我值班。
• It was a sunday and only a small number of workers were on duties
  由于是星期日，车厂内工作人数不多。
• Only one doctor is on duty today - the other doctor is off duty
  今天只有一个医生值班，另一位下班了。
• It ' s your turn to be on duty tomorrow
  明天轮到你值日了