I believe he made some boneheaded decisions over the past 4 years.

我相信他在过去的四年间做出了一些头脑发热的决定。

youdao

His team made some boneheaded mistakes, and now they are paying for them.

他的团队犯了一些愚蠢的错误，现在他们得为此付出代价。

youdao

The next time we played, I became very fearful, especially on big points, and started to make boneheaded errors.

再后来每当我们相遇，我就变得非常害怕，尤其在一些关键分上，开始犯一些非常愚蠢的错误。

youdao

His team made some boneheaded mistakes, and now they are paying for them.

CNN: Time for Obama to go 'gangsta' on GOP

With experience in short supply, the result is a showcase of individual brilliance and boneheaded mistakes, often in equal measure.

WSJ: Menu

He stomped up and down the sidelines, chewed out players for boneheaded moves, demanded silence on the bus after losses.

WSJ: Tony Campbell and Bay Ridge Basketball: High-Five the Guy Who Just Dunked on You