n.桦树，白桦
英文释义n. A tree of several species, constituting the genus Betula; as, the white or common birch (B. alba) (also called silver birch and lady birch); the dwarf birch (B. glandulosa); the paper or canoe birch (B. papyracea); the yellow birch (B. lutea); the black or cherry birch (B. lenta).
n. The wood or timber of the birch.
n. A birch twig or birch twigs, used for flogging.
n. A birch-bark canoe.
a. Of or pertaining to the birch; birchen.
v. t. To whip with a birch rod or twig; to flog.
词干birch 桦树，白桦→ 来自PIE *bher， 发光，同bright， 明亮的。