Xiphophorus helleri

• 剑尾鱼

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. Studies concerning the feasibility of rearing Xiphophorus helleri using areificial formuladiet to replace living natural food was discussed in this paper.
   本文探讨了用人工配合饵料代替天然后饵饲养剑尾鱼的可行性。