a hole or passage made by a drill; usually made for exploratory purposes
bore-hole的用法和样例:
例句
用作名词 (n.)
While drilling big or deep holes, you should pull out drills regularly in order to take out scraps, do not intend to bore holes at once. 当钻大的或深的孔时,要定时的退出钻头以带出碎屑,不要总是希望一次性的钻成。