bottom feeder

常見例句

LL: Unfortunately, there are a lot of bottom feeders in the world.
就是啊，這個(gè)世界還是有不少這種卑鄙的壞人。對(duì)了，Larry，這個(gè)bottom feeder是不是只能用來形容犯罪分子？
Some stingrays are bottom feeders and dine on crabs, clams, shrimp, and worms.
有些種類的刺鰩屬于底層魚類（bottom feeders），靠吃螃蟹、蛤蚌、蝦和蠕蟲為生；
She assures me that it was a source of shame to eat bottom feeders.
她向我保證說吃在海底覓食的動(dòng)物，是件恥辱的事情。

This is an age of bottom feeders, if I can use that word on NPR.
NPR: Roundtable: Rice Takes Heat, Graduation Gap
The only valuable ones left are urchin, scallops and lobster — bottom feeders that create a living for only a few fishermen.
FORBES: Can Tidal Power Create Enough Jobs To Save A Dying Town?
Among the bottom feeders were McDonald's (not part of a typical viewer's food spread for a big game) and credit card titans Visa and MasterCard.
FORBES: Magazine Article