| 单词 | Cryptostomata | 
| 释义 | Cryptostomataplural noun  Cryp·to·sto·ma·ta   ˌkriptəˈstōmətə   : a group of Paleozoic bryozoa (class Gymnolaemata) in which the true apertures of the zooecia are concealed at the bottom of vestibular tubes    cryptostome  ˈ⸗⸗ˌstōm | 
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