常見例句用作名詞 (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.當鉆大的或深的孔時,要定時的退出鉆頭以帶出碎屑,不要總是希望一次性的鉆成。 返回 bore-hole