They say that maths is a language. So how do I order a pizza with extra cheese in maths?

They say that maths is a language. So how do I order a pizza with extra cheese in maths?

他们说数学是一种语言。那么我怎么才能在数学课上点一个加奶酪的披萨呢?

-- Greg Curtis 格雷格·柯蒂斯