网络释义
以下结果来自互联网
- 1. 桦木类
- 2. 白桦树
网络例句
以下结果来自互联网
- a genus of trees of the family Betulaceae (such as birches).
桦木科的一个乔木属（例如桦树）。 - type genus of the Polyporaceae; includes important pathogens of e.g. birches and conifers.
多孔菌属的模式属；包括致桦树和松树主要的病原体。 - A usually dense, cylindrical, often drooping cluster of unisexual, apetalous flowers found in willows, birches, and oaks.
柳絮柳树、桦树和橡树的常为浓密、呈圆形并成团落下的单性、无花瓣花朵 - small black sawfly native to Europe but established in eastern United States; larvae mine the leaves of birches causing serious defoliation.
原产于欧洲但定居在美国东部的黑色小叶蜂；幼虫在桦树的叶子上钻洞导致严重的落叶发生。 - As you get closer to the Russian border，the forests of pines and birches get thicker and you come across frequent examples of Russian culture and art．
当你走近芬兰与俄罗斯的交界处，松树林和白桦林更加浓密，你也会频繁地接触到俄罗斯风格的文化和艺术。