打篮球之前，我们先说一下比赛规则。

Dǎ lánqiú zhīqián, wǒmen xiān shuō yīxià bǐsài guīzé.

Before we play basketball, let's go over the rules of the game first.

每个游戏都有自己的规则，你得先了解清楚。

Měi gè yóuxì dōu yǒu zìjǐ de guīzé, nǐ děi xiān liǎojiě qīngchu.

Every game has its own rules; you need to understand them clearly first.

他总是不遵守规则，大家都不愿意跟他玩。

Tā zǒngshì bù zūnshǒu guīzé, dàjiā dōu bù yuànyì gēn tā wán.

He never follows the rules, so nobody wants to play with him.