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1·I should have known the answer to his simple question.

我本应该知道他那个简单问题的答案的。

2·Maybe he should have known it.

也许他本应该知道这件事。

3·I mean to say, you should have known how he would react!

我的意思是说，你本应料到他会作何反应！《牛津词典》

4·What an odd coincidence that he should have known your family.

他已认识你的家人，多么不寻常的巧合。《柯林斯英汉双解大词典》

5·He bombarded Catherine with questions to which he should have known the answers.

他不停地追问凯瑟琳他本该知道答案的问题。《柯林斯英汉双解大词典》

6·I should have known earlier.

我应该早点知道这些。

7·Oh, I should have known it.

哦，我早该想到的。

8·He should have known that.

他应该知道这件事的。

9·We should have known that long-distance trains are often many hours late.

我们早应该知道长途火车经常会晚点好几个小时。

10·Since Bernie Madoff's arrest on charges of running a $65 million Ponzi scheme, I've read many articles about how we investors should have known what was going on.

自从伯尼·麦道夫因涉嫌经营6500万美元的庞氏骗局而被捕以来，我读过很多文章，说我们这些投资者应该知道发生了什么。