zài / shù / xué / kè / shàng / lǎo / shī / jiāo / wǒ / men / zěn / me / qū / fēn / jī / shù / hé / ǒu / shù

在数学课上，老师教我们怎么区分奇数和偶数。

In math class, the teacher taught us how to tell odd numbers from even numbers.