bettas
美
英 
例句
Butterfly bettas have the mutant gene that causes variegated fins with a very specific fin pattern.
蝴蝶斗鱼因基因突变拥有色彩斑驳的鳍及特殊的花色。
Keep the water relatively warm. Bettas are happiest at temperatures between 20 and 30 degrees.
保持水温相对温暖。饲养斗鱼的最佳温度在20至30度之间。