1. This is the stupidest idea I've ever heard.
这是我听过的最愚蠢的想法。

2. He made the stupidest mistake by forgetting to set his alarm clock.
他犯了最愚蠢的错误，忘记设定闹钟。

3. I can't believe she fell for the stupidest prank in the book.
我无法相信她上了这本书中最愚蠢的恶作剧。

4. That was the stupidest thing you could have said in that situation.
在那种情况下，你说的那句话是最愚蠢的。

5. Don't be the stupidest person in the room, speak up if you have something to say.
不要成为房间里最愚蠢的人，如果你有话要说就大声说出来。

6. It was the stupidest decision of his life to quit his job without a backup plan.
他生命中最愚蠢的决定是在没有备用计划的情况下辞掉工作。