Swordtail fish ( Xiphophorus helleri)

• 剑尾鱼

Swordtail fish ( Xiphophorus helleri)的用法和样例：

例句

1. Fertilization in Xiphophorus is internal.
   剑尾鱼是体内受精。
2. The sleek swordtail is an agile swimmer and needs plenty of room.
   圆滑的剑尾鱼是一个敏捷的泳者并且需要充足的活动空间。