如果你看一下，就会看到那个曾经是湖的地方。

If you look, you'll see what was a lake.

《柯林斯英汉双解大词典》

也许你曾经和你的前任携手共舞，但你们关系破裂后就放弃了。

Maybe you used to go dancing with your ex but gave it up when you split.

youdao

如果你曾经用“如果我是你……”这样的句子开头，这背后是有科学依据的。

If you've ever started a sentence with, "If I were you...", there's a scientific reason behind it.

youdao

You can go up and look at it because your parents probably bought one and it's still up there.

你可以上去看看,因为你的父母可能曾经买过一个,但是被束之高阁。

耶鲁公开课 - 金融市场课程节选

But if you want to know the answer, and I knew it, but I forget what it is-- it doesn't matter.

如果你想知道答案,我曾经是知道答案的,不过我忘掉了,这不重要

耶鲁公开课 - 心理学导论课程节选

To be honest, especially those of you less comfortable here, if you've ever struggled with some program or struggled with some piece of software, oh it's alright, it's not your fault.

说实话，尤其是对那些在这里上课有些吃力的同学，如果你曾经使用哪个程序或软件有困难,好吧，那不是你的错。

哈佛公开课 - 计算机科学课程节选