| 释义 |
蛭zhì环节动物的一纲,体一般长而扁平,无刚毛,前后各有一个吸盘。生活在淡水中或湿润的地方,大多营半寄生生活,如水蛭、蚂蟥等。{leech; annelids of the class Hirudinea, characterized by an elongated and flat body, having no bristles, with a sucker on both the front or back ends, living in freshwater or humid areas, and mostly clinging to other animals, e.g. bloodsuckers, etc.} |