2 sentences for 偶 (ǒu — even)

1. 那么怎么知道一个数是奇数还是偶数？

   nà​me zěn​me zhī​dao yī​ge shù shì jī​shù hái​shi ǒu​shù?

   How do we know if a number is odd or even?

   Source: CCMatrix

2. 如果有三罐，他会扔掉一罐，因为那必须是偶数。

   rú​guǒ yǒu sān guàn, tā huì rēng diào yī guàn, yīn​wèi nà bì​xū shì ǒu​shù.

   If there are three cans, he’ll throw one away because it has to be an even number.

   Source: CCMatrix