没有像绝对安全的核电站这种东西。

There’s ___no ___such ___thing as a perfectly safe nuclear power plant.

但当我要求这些时，被告知没有这种东西存在，因此广告再次被证明是错误的。

But when I asked for these, I was told that ___no ___such ___thing existed and so the advertisement was once again proved wrong.

天下没有免费的午餐。

There is ___no ___such ___thing as a free lunch.