人们曾经认为地球是平的。

People used to think the earth was flat.

《牛津词典》

这份季刊曾经是正统学术辩论的论坛。

The quarterly had been a forum for sound academic debate.

《柯林斯英汉双解大词典》

戈弗雷过去曾经对我是友好的。

Godfrey had been friendly to me.

《柯林斯英汉双解大词典》

Well, "The wonder is I didn't see at once" and that is the grave that he has made for their child.

奇迹的是我曾经看不见“,是他为他们的孩子准备的坟墓。

耶鲁公开课 - 现代诗歌课程节选

or any of the countries that used to be in the empire for exceedingly good charity work

或者来自曾经是英国殖民地的做出突出慈善事业的人，

想获得骑士爵位 - SpeakingMax英语口语达人

And he knew this. He had obviously been a successful student at St. Paul's School in London and then later in college at Cambridge University.

他认识到了这一点，显然他曾经是一个优秀的学生,在伦敦圣保禄学校,还有随后的剑桥大学。

耶鲁公开课 - 弥尔顿课程节选