behavior

behavior, conduct, manner

这些名词均含有“行为，举止”之意。
behavior: 普通用词，侧重指某人在特定场合对他人或在他人面前的表现的行为、举止。
conduct: 较正式用词，泛指某人的行动。侧重根据社会道德标准和责任感。
manner: 主要用来指人的习惯行为。

名词 behavior:

1. manner of acting or controlling yourself
   同义词：behaviour, conduct, doings
2. the action or reaction of something (as a machine or substance) under specified circumstances
   同义词：behaviour
3. (behavioral attributes) the way a person behaves toward other people
   同义词：demeanor, demeanour, behaviour, conduct, deportment
4. (psychology) the aggregate of the responses or reactions or movements made by an organism in any situation
   同义词：behaviour

1. She embodies her principles in her behavior.
   她把自己的原则体现在行动中。
2. His behavior showed he was an evil person.
   他的行为表明他是一个邪恶的人。
3. Nothing can extenuate such appalling behavior.
   这种骇人听闻的行径罪不可恕。
4. He was sentenced to death for his mutinous behavior.
   他因反叛行为而被判死刑。
5. His behavior called forth sharp criticism.
   他的行为招致尖锐的批评。
6. His strange behavior made the police suspicious.
   他不寻常的举止引起了警察的怀疑。
7. His behavior was, in a word, shocking.
   总之，他的行为是令人震惊的。
8. Their behavior towards me shows that they do not like me.
   他们对我的举止说明他们不喜欢我。

be.hav.ior

n.（名词）
The manner in which one behaves.
行为：指人行动的方式
Psychology The actions or reactions of persons or things in response to external or internal stimuli.
【心理学】 生物习性：人或物对内部或外部刺激所做出的行为与反应

来源：
Middle English behavour
中古英语 behavour
from behaven [to behave] on the model of havour [behavior] from Old French avoir from avoir [to have]
源自 behaven [行动] 仿照 havour [行为] 源自 古法语 avoir 源自 avoir [具有]
* see behave
*参见 behave

【引伸】
behav.ioral
adj.（形容词）
behav.iorally
adv.（副词）
<参考词汇><同义词>behavior,conduct,deportmentThese nouns all pertain to a person`s actions as they constitute a means of evaluation by others.
这些名词在构成他人评价的方式时都与人的动作有关。
Behavior is the most general:
Behavior 是最通用的：
例句：
time off for good behavior;
现在可以无拘无束；

例句：
on their best behavior;
举止出众；

例句：
guilty of contemptible behavior.
为可耻的行为而感到追悔。

Conduct applies to actions considered from the standpoint of morality and ethics:
Conduct 指由伦理道德角度来看的行动：
例句：
.The fate of unborn millions will now depend . . . on the courage and conduct of this army. (George Washington).
.尚未出生的数以百万人的命运就取决于这支军队的勇气和行动. （乔治·华盛顿）。

例句：
.Life, not the parson, teaches conduct. (Oliver Wendell Holmes, Jr.).
.是生活而不是牧师，告诉人们该如何行动. （小奥立弗·温德尔·霍姆斯）。

Deportment more narrowly pertains to actions measured by a prevailing code of social behavior:
Deportment 指更局限于受社会行为准则评价的行为举止：
例句：
.[Old Mr. Turveydrop] was not like anything in the world but a model of Deportment. (Charles Dickens).
. 是世界上行为的楷模. （查尔斯·狄更斯）