| 单词 | Cystopteris | 
| 释义 | Cystopterisnoun  Cys·top·ter·is   siˈstäptərə̇s   : a genus of ferns (family Polypodiaceae) of the north temperate zone having a hooded or arched indusium partly under the roundish sori   see bladder fern, fragile fern   | 
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