Any of several trees or shrubs which have a close-grained wood and smooth outer bark which in some varieties may be removed in thin, papery sheets.

【植】桦树。

A rod formed of birch twigs, used for punishment.

(鞭打用的)桦条。

Its wood.

桦木。

Made of birch.

桦木制的。

To punish with a birch rod; flog; whip.

以桦条打；笞责；鞭打。