The odour may be horribly from stink bombs and sewage, but new research suggests the foul fumes might not be all bad.

臭气很可能来自臭弹和污水，但新的研究表明臭气也不全是坏的。

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Forecasters say the storms may not be as bad as they initially predicted.

预报员们说暴风雨不像他们最初预报的那样糟。

《柯林斯英汉双解大词典》

It may not be a bad thing to know how to defend yourself.

但世事难料，也许，知道如何保护自己并不是一件坏事。

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This time, with the economy in a bad recession, some guests may not be as wealthy as they were.

VOA: special.2009.01.19

These kinds of fats are not necessarily bad, and so things like olive oil in the diet tends to be protective and may explain some regional variations in rates of heart disease.

这些脂肪就不一定有害,所以饮食中橄榄油之类的对身体是有益的,这也解释了地域间心脏病发病率的差异

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Being long a naked option may not be a bad thing on its own, but it puts you in a different risk scenario, and is not the point of your original trade.

FORBES: An Options Strategy The Rolling Stones Would Love

But things may not be quite as bad as they look, not least because there is enormous scope for China to use energy more efficiently.

ECONOMIST: A hungry dragon

But, this anecdote of the ebook era may not be all bad news for publishers.

FORBES: The Fast-Track to Making a Million Dollars From Writing Books