exonarthex

例句：

1. 1.The exonarthex is a rare and fascinating species of plant.
   外纳特赫克斯是一种罕见且引人入胜的植物物种。
2. 2. The exonarthex has unique adaptations that make it suitable for its environment.
   外纳特赫克斯具有独特的适应机制，使其适合其环境。
3. 3. Researchers are studying the exonarthex to understand its ecological role in the ecosystem.
   研究人员正在研究外纳特赫克斯，以了解其在生态系统中的作用。