| 单词 | genus Alnus |
| 释义 | genus Alnus (extremely rare) n WORD FAMILY genus Alnus USAGE EXAMPLESA tree, usually growing in moist land, and belonging to the genus Alnus. Webster, Noah, Webster's Unabridged Dictionary(2012) The genus alnus includes twenty species, nine of which grow in North America; six of these reach the height of trees. Rogers, Julia Ellen, Trees Worth Knowing(2011) n alders Syn|Hyper Alnus hamamelid dicot genus genus of mostly woody relatively primitive dicotyledonous flowering plants with flowers often unisexual and often borne in catkins |
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