drill
drill 英 [drɪl] 美 [drɪl]
n. 训练；钻孔机； vi. 钻孔；训练
进行时:drilling 过去式:drilled 过去分词:drilled 第三人称单数:drills 名词复数:drills
- A drill is a power tool that's used for making narrow holes or sometimes for pushing screws into wood or other hard material. The word is also a verb to describe the action a drill performs. For example, a dentist might drill into your tooth if you have a cavity.
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- n. 训练；钻孔机；
- vi. 钻孔；训练
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1. an electric drill
电钻
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2. a hand drill
手钻
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3. a dentist's drill
牙钻
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4. Drill a series of holes in the frame.
在构架上钻一串孔。
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5. a well-drilled team
训练有素的队伍
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6. The children were drilled to leave the classroom quickly when the fire bell rang.
孩子们接受了如何在火警钟拉响时迅速离开教室的训练。
- drill (n.1) "tool for making holes," 1610s, from Dutch dril, drille "a hole, instrument for boring holes," from drillen "to bore (a hole), turn around, whirl" (see drill (v.)).
- drill (n.2) "small furrow," 1727; also "machine for sowing seeds" (1731), from obsolete drill "rill, trickling stream" (1640s), which is of unknown origin; perhaps connected to drill (n.1).
- drill (n.3) kind of coarse, twilled cloth, 1743, from French drill, from German drillich "heavy, coarse cotton or linen fabric," from Old High German adjective drilich "threefold," from Latin trilix (genitive trilicis) "triply twilled" (see trellis). So called in reference to the method of weaving it.
- drill (n.4) "West African baboon species," 1640s, perhaps from a native word (compare mandrill).
- drill (v.) c. 1600 (implied in drilling), from Dutch drillen "to bore (a hole), turn around, whirl," from Proto-Germanic *thr- (source also of Middle High German drillen "to turn, round off, bore," Old English þyrel "hole"), from PIE root *tere- (1) "to rub, turn," with derivatives referring to twisting, boring, and drilling. Sense of "to instruct in military exercise" is 1620s (also in Dutch drillen and in the Danish and German cognates), probably from the notion of troops "turning" in maneuvers. Extended noun sense of "the agreed-upon procedure" is from 1940. Related: Drilled.
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