Tetrahymenina

例句：

1. 1. The tetrahymenina is a fascinating creature that has been studied for centuries.
   这种四足虫是一种令人着迷的生物，已经研究了几个世纪了。
2. 2. The tetrahymenina is known for its unique ability to move on four legs.
   四足虫以其独特的四足行走能力而闻名。
3. 3.In the wild, the tetrahymenina often lives in underground burrows.
   在野外，四足虫常常生活在地下洞穴中。