tetraotus

例句：

1. 1. The newspecies of tetraotus is the firstto be discovered in this region.
   新发现的四足动物物种是该地区首次发现。
2. 2.The tetraotus was found in acave that had been untouched forcenturies.
   这种四足动物在一座数百年未被打扰的洞穴中被发现。
3. 3.The tetraotus has four legs andcan walk on two legs at a time.
   这种四足动物有四条腿，可以同时用两条腿行走。