birch
/bɜ:tʃ; bətʃ/ n
1 [U, C] (wood of a) type of northern forest tree with smooth bark and thin branches 白桦树; 桦木. =>illus at App 1 见附录1之插图, page i.
2 [C] birch rod or a bundle of birch twigs, formerly used for flogging schoolboys and young offenders 桦条（旧时用以抽打学童和少年犯）
Should we bring back the birch as a punishment? 我们应该恢复用桦条抽打的体罚吗? birch, v [Tn]
flog with a birch(2) 用桦条打.