单词ray-finned-fish
网络: 鳍鱼类；辐鳍鱼；重复发生在射线鳍鱼
This includes 30, 000 species of land animals - including humans - and a similar number of ray-finned fish, the scientists found.
科学家们发现这些动物包括3万种陆地动物，和一小部分鳍刺类鱼。