I should have know not to invite her.

我要是早知道的话就不邀请她了。

youdao

"Why, Frederick," said she, "I did not know I was doing wrong; you should have told me before."

“哎呀，弗雷德里克。”她说，“我不知道我那么做是错的。你应该早点告诉我的。”

youdao

"Why," answered she, "I did not know there was any harm in it; you should have told me."

“怎么。”她回答说，“我不知道这有什么害处；你应该告诉我的。”

youdao

I think you should take the lab sometime, but I don't know how many semesters that you have to take.

我觉得你们应该是不是地去做几次实验,我不太清楚你们要上多少个学期的课

耶鲁公开课 - 基础物理课程节选

Now many of you may have heard, many of you may know, and if you don't already know this, I should warn you, that I have a reputation around Yale as being a harsh grader.

你们中的大多数可能听说过，你们中的一部分可能知道，如果你真的不知道，那么我要警告你，我在耶鲁,是出了名的严厉。

耶鲁公开课 - 死亡课程节选

I know you couldn't do the details, but you should at least know that it's i prime and j prime that have been replaced by i and j.

我知道你们不太注意细节,但你们至少应该知道 i' 和 j',已经被 i 和 j 取代了

耶鲁公开课 - 基础物理课程节选

"We're now six unbeaten, and whilst I know we should have had more points, I was never overly concerned, " he said.

BBC: Ferguson wants Posh side to focus

His keeping 18 months ago was not very good and he wasn't scoring the runs that he should have been, but I know as a commentator that the references I make to Prior's wicketkeeping now are almost always positive.

BBC: Jonathan Agnew column

Never mind, I have got to learn and I should know better - but it is ridiculous.

BBC: FA charges Blackpool manager Ian Holloway