- [countable]
a tool or machine with a pointed end for making holes 钻；钻头；钻床；钻机 
an electric drill 电钻 a hand drill 手钻 a dentist’s drill 牙钻 a drill bit (= the pointed part at the end of the drill) 钻头
- [countable, uncountable]
a way of learning something by means of repeated exercises 练习；训练 - [countable, uncountable]
a practice of what to do in an emergency, for example if there is a fire （应对紧急情况的）演习 a fire drill 消防演习 This is not a drill! Please evacuate the building. 这不是演习！请撤离大楼。
Extra ExamplesThe school has a fire drill once a week. 学校每周有一次消防演习。 Air-raid drills and evacuation procedures have been practised. 空袭演习和疏散程序已经实施。
- [uncountable]
military training in marching, the use of weapons, etc. 军事训练；操练 rifle drill 步枪操练
- the drill[singular] (old-fashioned)
the correct or usual way to do something 正确的步骤；常规；程序 Extra ExamplesUsually a midwife was present: if not, Mother knew the drill. 通常有助产士在场:如果没有，妈妈知道该怎么做。
- [uncountable]
a type of strong cotton cloth 粗斜纹布 - [countable]
a machine for planting seeds in rows 条播机 a seed drill 播种机
Word Originnoun senses 1 to 5 early 17th cent.: from Middle Dutch drillen ‘bore, turn in a circle’. noun sense 7 early 18th cent. (as a noun in the sense ‘small furrow’): perhaps from drill ‘make a hole’. noun sense 6 early 18th cent.: abbreviation of earlier drilling, from German Drillich, from Latin trilix ‘triple-twilled’, from tri- ‘three’ + licium ‘thread’.