名詞 prey:

1. a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence
   同義詞：quarry, target, fair game
2. animal hunted or caught for food
   同義詞：quarry

動詞 prey:

1. profit from in an exploitatory manner
   同義詞：feed
2. prey on or hunt for
   同義詞：raven, predate

1. The thought that he was responsible for her death preyed on his mind.
   他一想到自己對她的死負(fù)有責(zé)任就感到心如刀割。
2. Fear of the consequences preyed on her mind.
   她擔(dān)心其後果而惴惴不安。
3. Strong animals prey upon weaker ones.
   弱肉強(qiáng)食。
4. The lion seized its prey and ate it.
   獅子抓住獵物，把它吃了。
5. Cares preyed upon her health.
   憂慮損害了她的健康。

prey

n.（名詞）
An animal hunted or caught for food; quarry.
捕獲物，獵物：作為食物被追捕的動物；獵物
One that is defenseless, especially in the face of attack; a victim.
犧牲品：沒有防衛(wèi)能力，尤指在面對攻擊時(shí)的生物；犧牲
The act or practice of preying.
捕獵，捕食：捕獵的行為或?qū)嵺`
v.intr.（不及物動詞）
preyed,prey.ing,preys
To hunt, catch, or eat as prey:
捕食：追捕，抓獲或食用（獵物）：
例句：
Owls prey on mice.
貓頭鷹捕食老鼠

To victimize or make a profit at someone else`s expense.
使…成為犧牲品：使…成為犧牲品或以損害他人謀利
To plunder or pillage.
搶劫或搶奪
To exert a baneful or injurious effect:
折磨，使痛苦：施加不良的或有害的影響：
例句：
Remorse preyed on his mind.
懊悔使他內(nèi)心惴惴不安

來源：
Middle English preie
中古英語 preie
from Old French
源自 古法語
from Latin praeda [booty, prey] * see ghend-
源自 拉丁語 praeda [搶奪] *參見 ghend-

【引伸】
prey.er
n.（名詞）