Cryptodira

例句：

1. 1. The cryptodira is a fascinating group of marine organisms.
   隐花虫是一种令人着迷的海洋生物群体。
2. 2. The cryptodira are known for their unique adaptations to the deep sea environment.
   隐花虫因其对深海环境的独有适应而闻名。
3. 3.Cryptodira play an important role in maintaining the balance of marine ecosystems.
   隐花虫在维护海洋生态系统平衡中起着重要作用。