天底

tiān dǐ xia méi yǒu xīn qí de shì wù

天底下没有新奇的事物。

There is no new thing under the sun.

tā men yī dìng shì tiān dǐ xia zuì zāo gāo de yuè duì

她们一定是天底下最糟糕的乐队。

They have got to be the worst band on the planet.