make money illicitly and at someone else's expense营私，中饱私囊
(as) light as a feather
extremely light and insubstantial轻如鸿毛；空虚缥缈
feather in (one's) cap
An act or deed to one's credit; a distinctive achievement.功绩：增添某人荣誉的行为或事情；不凡的功绩
feather (one's) nest
To grow wealthy by taking advantage of one's position or by making use of property or funds left in one's trust.肥私囊：借职务之便或动用信誉资金而增加某人的财富
in fine feather 或 in good feather 或 in high feather
In excellent form, health, or humor.身强体健：形体、健康或幽默感出色的
柯林斯高阶英汉双解学习词典释义
N-COUNT
羽毛
A bird's feathers are the soft covering on its body. Each feather consists of a lot of smooth hairs on each side of a thin stiff centre.
例句
...a hat that she had made herself from black ostrich feathers.她用黑色鸵鸟羽毛给自己做的帽子...a feather bed.羽毛褥垫床
PHRASE
同类的人;志趣相投的人;一丘之貉
If you describe two people as birds of a feather, you mean that they have very similar characteristics, interests, or beliefs.
例句
She and my mother were birds of a feather.她和我妈妈是一个类型的人。
PHRASE
可引以为豪的事;荣耀的事;有好处的事
If you describe something that someone has achieved as a feather in their cap, you mean that they can be proud of it or that it might bring them some advantage.
例句
Harry's appointment to this important post was a feather in his cap.哈里被任命担任如此要职，这是件荣耀的事。
英汉词典释义
n.
羽毛
Mr.Zhuge was holding a feather fan in his hand.诸葛先生手里拿着一把羽毛扇。
英英词典释义
Noun
1. the light horny waterproof structure forming the external covering of birds
2. turning an oar parallel to the water between pulls