名词

1. 寄生生物；寄生虫；寄生植物

2. 寄生虫；依赖他人过活者

英语解释

a follower who hangs around a host (without benefit to the host) in hope of gain or advantage

an animal or plant that lives in or on a host (another animal or plant); it obtains nourishment from the host without benefiting or killing the host