Englishfor English speakers
drill
Noun
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A drill is an object used to dig a hole.
He used the drill to make a hole on the wall.
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A practice before a major event is called a drill.
Our school often conduct fire drills to train us in case of a real fire.
drill
Verb
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To drill someone is to get a piece of information into someone's head.
My teacher tried all ways to drill the mathematical concept into my head.
central
Adjective
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A thing is central when it is in the middle.
The house is central to all of the stores.