to feed off
[phrase form: feed]
01
从...获取力量, 以...为食
to gain strength from a specific source or influence
例子
The mob 's anger fed off the escalating tensions in the community.
暴徒的愤怒源于社区中不断升级的紧张局势。
02
以...为食, 靠...生存
to consume a particular type of food regularly to grow and stay alive
例子
Cows feed off grass in the pastures every day.
奶牛每天在牧场上以草为食。
