There is no such thing as a free lunch.

世上没有免费午餐之类的好事儿。

《牛津词典》

They say there is no such thing as a free lunch.

他们说天下没有免费的午餐。

youdao

In that blessed place, there is no such thing as study.

在那个神圣的地方，没有学习这回事。

youdao

But clearly there is no such thing as a safe level of cigarette smoke exposure.

VOA: special.2009.06.03

figuring out there is no such thing as a free lunch but Markowitz tells us that diversification is a free lunch.

知道世上没有免费的午餐这回事,但马科维茨称分散投资是免费的午餐

耶鲁公开课 - 金融市场课程节选

There is no such thing as true or false.

也就没有真或假。

哈佛公开课 - 计算机科学课程节选

The idea that there is no such thing wrong theory is hard to follow.

FORBES: The Founder of 21st Century Management: Peter Drucker

And as the saying goes, there is no such thing as a free lunch.

WHITEHOUSE: Town Hall on America��s Fiscal Future

Despite Mr Cameron's bland reassurance, there is no such thing as a "dab" of statute.

BBC: Press reform: Media reaction to regulation deal