behavior
词根词缀：
behave v. 举动
be 使… + hav 拥有 + e →〔一个人〕拥有的动作 → 举动
behavior n. 举止行为
be 使… + hav 拥有 + ior，behave 的名词 → 举止行为
have v. 有
haven n. 安全的地方；庇护所
hav 拥有 + en 使… → 拥有一切的地方 → 安全的地方
数据来源：新东方英语词汇速记大全
相关例句：
The elegy can be described as a behavior and a sort of mourning and wield style.
挽歌是一种行为，又是一种哀祭文体。
His behavior grew more unpredictable by the day, and increasingly tyrannical.
他的行为越来越难以捉摸，而且愈发残暴。
His noble ideas and polite behavior are laudable.
他崇高的思想和彬彬有礼的举止令人赞美。
A plasma is a quasineutral gas of charged and neutral particles which exhibits collective behavior.
等离子体是带电粒子和中性粒子组成的表现出集体行为的一种准中性气体。
Her actions and thoughts became distorted. So did her behavior.
她的行动和思想变得扭曲了，她的态度也是。
Occasionally his behavior became so uncontrollable that he had to be placed in a straitjacket.
他的行为偶尔会变得如此失控，不得不给他穿上约束服。