| 释义 |
〔swordtail〕A small, brightly colored, live-bearing freshwater fish(Xiphophorus helleri) of Central America, having a long, tapering extension of the caudal fin in the male and popular in home aquariums. 剑尾鱼：中美洲的一种颜色鲜艳、胎生的小型淡水鱼，（剑尾鱼） ，雄性的尾鳍很长，并呈逐渐变细状，在家庭的养鱼池中很常见 〔crawl〕A pen in shallow water, as for confining fish or turtles.养鱼池，养龟池：用来养鱼或乌龟等的浅水围场 |