| 单词 | Betulaceae | 
| 释义 | Betulaceaeplural noun  Bet·u·la·ce·ae   ˌbe-chə-ˈlā-sē-ˌē   : a family of trees and shrubs (order Fagales) having simple leaves, monoecious or rarely dioecious flowers, and one-seeded nutlike fruits and comprising the birches and certain related plants (such as alders, hornbeams, and hazels)    betulaceous  ¦be-chə-¦lā-shəs | 
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