I should have known better.

我早该搞了解了。

youdao

I should have known better than to believe him.

我本应知道他要做什么而不该相信他的。

youdao

I should have known better than to travel by sea in winter.

我本不该在冬天乘船旅行的。

youdao

I should have known better.

我早该知道的。

I should have 课堂 - SpeakingMax英语口语达人

After decades of work in radio, music and popular culture, I should have known better.

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Mr. RONNIE HOLMES (Firefighter): I think they should have known better.

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