pairs

对

例句与用法：

I have two pairs of swimming trunks.

我有两条游泳裤。

I have two pairs of pajamas.

我有两套睡衣裤。

The number of electron pairs an atom can share with other atoms.

共用电子对数，共价一个原子与其他原子共用的电子的对数

A small cube marked on each side with from one to six dots, usually used in pairs in gambling and in various other games.

骰子一个小的正六面体，每面分割为一副六个点，通常为一对，用于赌博或其它游戏中

Cuff-links are only sold in pairs.

袖扣论对卖。