单词	墙树
释义	墙树n.espalier棚树，墙树；树篱
随便看	background mode background monitor background--monitor background monitoring background monitoring station background monitoring--station background music background music {=bgm} back ground noise background noise background-- noise background--noise background noise level background-noise level background noise-mean estimation background noise of channel background of mass spectrum background or bias-include noise background paging background paper background partition background plane background plate background pollution background printing