形容詞 greedy:

1. immoderately desirous of acquiring e.g. wealth
   同義詞：avaricious, covetous, grabby, grasping, prehensile
2. (often followed by `for') ardently or excessively desirous
   同義詞：avid, devouring, esurient
3. wanting to eat or drink more than one can reasonably consume

1. He's a real greedy guts.
   他真是貪吃的大肚漢。
2. A greedy, rapacious person.
   貪心的或貪婪的人
3. He is a greedy capitalist.
   他是一個(gè)貪婪的資本家。
4. The greedy little boy ate all the candy at the party.
   那個(gè)貪吃的小男孩把宴會(huì)上所有的糖果都吃光了。
5. He looked at the shop window with greedy eyes.
   他用貪婪的眼光看著商店的櫥窗。

greed.y

adj.（形容詞）
greed.i.er,greed.i.est
Excessively desirous of acquiring or possessing, especially wishing to possess more than what one needs or deserves.
貪婪的；貪心的：對(duì)獲取或擁有，特別是希望擁有超過(guò)自身所需或應(yīng)得的事物的極度渴望的
Wanting to eat or drink more than one can reasonably consume; gluttonous.
貪食的：想吃或喝掉比自己的合理食量更多的食物的；貪吃的
Extremely eager or desirous:
渴望的；熱切的：極度地希望的：
例句：
greedy for the opportunity to prove their ability.
渴望證明他們能力的機(jī)會(huì)

來(lái)源：
Middle English gredi
中古英語(yǔ) gredi
from Old English grôdig * see gher- 2
源自 古英語(yǔ) grôdig *參見(jiàn) gher- 2

【引伸】
greed.ily
adv.（副詞）
greed.iness
n.（名詞）