虫胶shell: n. (pl. shells,2 义为 shell) 1 ...lac: lac2 = lakh. shell-lac: 虫胶shell-lac and bone glue making equipment: 骨胶用设备; 制虫胶lac: n. 【化学】虫胶,紫胶,虫脂。 lac2 = lakh. 下载手机词典可随时随地查词查翻译