Those three behavioral criteria are, first, that the animal goes through a period of quiescence where they are less active.

“睡眠有三种行为标准，第一，动物会经历活动力较静止期。

His quiescence seemed ironical and treacherous, it fitted so poorly with his looks.

沉默看起来既讽刺又奸诈，与相格格不入。