(Music)the way in which a player applies the mouth to the mouthpiece of a brass or wind instrument (乐)吹奏铜管乐器时的口形 ■the mouthpiece of a flute or a similar instrument (长笛等管乐器的)吹口
(archaic)the mouth of a river or valley (古)河口;溪谷口
语源
mid 18th cent.: French, from s'emboucher 'discharge itself by the mouth', from emboucher 'put in or to the mouth', from em- 'into' + bouche 'mouth'