water flea的反义词
名词水蚤; 鱼虫
1. 水蚤：water feeder 供水器 | water flea 水蚤 | water fountain 饮水器
2. 水蚤,水：water cycle 水循环 | water flea 水蚤,水 | water hyacinth 大水萍,水浮莲
noun
1. minute freshwater crustacean having a round body enclosed in a transparent shell
moves about like a flea by means of hairy branched antennae
Synonym: daphnia
2. minute free-swimming freshwater copepod having a large median eye and pear-shaped body and long antennae used in swimming
important in some food chains and as intermediate hosts of parasitic worms that affect man e.g. Guinea worms
Synonym: cyclops