bottom-feeder

• 指生活在水底并以底部沉积物为食的动物，通常指鱼类；也引申指处于食物链底层、以残渣或弱者剩余为生的人或生物。

A noun referring to a creature, typically a fish, that lives and feeds at the bottom of a body of water, or more broadly, a scavenger that feeds low on the food chain.

1. Fish that feeds on the bottomB2formal

   A fish that lives and feeds near the bottom of a body of water, often consuming organic debris.

   底栖鱼

   • Catfish and carp are common bottom-feeders in rivers.
   • Bottom-feeders help clean the aquatic environment by eating dead matter.
   • The lake is home to several species of bottom-feeders.

   同义词bottom feederbottom-dwellergroundfish

2. Scavenger or low-status personC1informalamerican

   A person who takes advantage of others or engages in low-status, often unethical activities for personal gain.

   食腐者或低贱之人

   • He's a bottom-feeder who profits from other people's misery.
   • The tabloid journalist was called a bottom-feeder for exploiting celebrities.
   • In the business world, some bottom-feeders thrive on shady deals.

   同义词bloodsuckerfreeloaderleechmoocheropportunistparasitescavengervulture