倒铲反铲挖掘机反铲挖土机反向铲backacting shovel (挖土机); backhol: 反铲backache syndrome: 背痛综合征backactor: 反铲挖土机backache in pregnancy: 妊娠期背痛backaged fuel: 包装燃料下载手机词典可随时随地查词查翻译
