mar

名词 mar:

1. the month following February and preceding April
   同义词：March
2. a mark or flaw that spoils the appearance of something (especially on a person's body)
   同义词：blemish, defect

动词 mar:

1. make imperfect
   同义词：impair, spoil, deflower, vitiate
2. destroy or injure severely
   同义词：mutilate

1. If he does not break himself of his bad habit, he will mar his own market.
   如果他不必掉这种坏习惯，他会坏自己的事的。
2. Such a mistake would mar your career.
   这种错误会有损你的事业。
3. Age cannot mar her beauty.
   岁月无损于她的美貌。

mar

v.tr.（及物动词）
marred,mar.ring,mars
To inflict damage, especially disfiguring damage, on.
损坏：对…实施破坏，尤指那种损坏外形的破坏
To impair the soundness, perfection, or integrity of; spoil.See Synonyms at injure
损害…的健全、完美或完整；毁坏参见 injure
n.（名词）
A disfiguring mark; a blemish.
一个有损外观的斑点；污点

来源：
Middle English merren
中古英语 merren
from Old English mierran, merran [to impede]
源自 古英语 mierran, merran [阻碍]