It was a mad idea.

那是个愚蠢透顶的想法。

《牛津词典》

This is not a mad idea.

这个点子并不疯狂。

youdao

He had this same mad idea a few years ago.

他几年前就有这种痴心妄想。

youdao

Alongside the unnecessary and intrusive charter of fundamental rights and the mad idea of giving the undeserving European Parliament more powers, Lisbon improves the EU's voting system, partly sorts out a muddled foreign-policy structure and creates a permanent presidency of the European Council in place of the present six-month, rotating one.

ECONOMIST: The European Union after Ireland's vote

Quite simply, these newspapers seem to me to be mad to turn down the idea of making more money for nothing.

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BMW, the presenting sponsor of the recent season premiere of Mad Men is nothing if not focused on the idea of the perfect driving experience.

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