| 释义 | 
		 birchBrE /bɜːtʃ/NAmE /bɜːrtʃ/ noun [C, U]  (also ˈbirch tree [C]) a tree with smooth  bark  and thin branches, that grows in northern countries 桦树;白桦树  ➡  see also silver birch  (also birch·wood BrE /ˈbɜːtʃwʊd/ NAmE /ˈbɜːrtʃwʊd/)  [U] the hard pale wood of the  birch  tree 桦木the birch  [sing.] the practice of hitting sb with a bunch of  birch  sticks, as a punishment 用桦木条抽打(作为惩罚) |