v (1) 鉆，鑿，挖(make (a hole， well， tunnel， etc) by using a drill or by digging)[I， I+prep， T+n， T+n+prep]：～through rock鑿巖洞;～a well 挖井;～a hole(in wood/a wall/the side of a ship)(在木頭/墻/船舷上)鉆洞;～a tunnel(through a mountain/under the sea)(穿山/在海底)鑿隧道; 〖同〗drill;
(2) 掘洞前進(jìn)(move by digging)[I+prep， I+adv， T+n+prep， T+n+adv]：(mole)～(its way) underground (鼴鼠)在地下鉆行;
(3) 艱難地行進(jìn)(move steadily ahead， usu through difficulties)[I+prep(through)， T+n+adv(through)]：～on through waves破浪而行;～one's way through a crowd of people在人群中擠行;
→′borer n 鉆孔者，鉆孔的工具;′borehole n 鉆孔;
n (1) 鉆孔(deep hole made by drilling into the ground (esp for oil or water))[C] (=borehole);
(2)槍炮的口徑(distance across the hollow inside of a gun barrel)[C](尤用于合成詞)：small-～guns 小口徑步槍;a twelve-～shotgun 12毫米口徑獵槍