I used to love you

曾经───once

After ten years'hard study noticed by none, his fame fills the land once honours are won.───十年寒窗无人问, 一举成名天下知.

He had seen her only once since the meeting.───自从那次会议以来,他只见过她一次.

She told him to leave the room at once.───她要他马上离开房间.

He once lived in Zambia.───他曾在赞比亚生活过。

Once people retire they automatically cease to be union members.───人们一旦退休就自动不再是工会会员.

The court laid the young thief under an obligation to report to the police station once a week.───法院强迫那个小偷每周向警察局报到一次.

You want to see a doctor at once.───你必须马上去看医生.

Hearing that there was an emergency case, the doctor put down his chopsticks and left at once.───听说有急诊, 医生撂下筷子就走.

Let's go through the sonata once more.───这个奏鸣曲咱们再练习一遍.

He will explain it fully once and for all.───他将把它充分地解释一次就此了结.

Once bit [bitten] twice shy.

The word once spoken can never be realled.

The earth rotates once a day.

Once upon a time there was a princess ...

Once water begins to boil,its temperature no longer rises.

Once again , the train was late.

If necessary I can come at once.

He that doth most at once doth least.

He that once deceives is ever suspected.