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.儅鑽大的或深的孔時(shí)，要定時(shí)的退出鑽頭以帶出碎屑，不要縂是希望一次性的鑽成。 返回 bore-hole