calking凿: certain; accurate; true; aut ...紧: taut; tight凿井: 1.(挖井; 掘井) dig a well; sink a well2.[矿物学] shaft sinking; pit sinking 冻结法凿井 freeze sinking凿尖犁铧: chisel point share凿井安全盖板: sinking bogie下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:凿紧，即可在微信中查询翻译
