1、The periodic table is structured in a hexad pattern, with elements arranged in rows of six.
元素周期表按照六个为一组的模式排列，有规律地展示各种元素。

2、The relay race requires a team of hexads, with each runner completing one leg of the race.
接力赛需要六人一组的队伍，每个跑步者完成一段比赛跑程。