| 单词 | drill |
| 释义 | drill 1. n. & v. --n 1. a pointed, esp. revolving, steel tool or machine used for boring cylindrical holes, sinking wells, etc. 2. a esp. Mil. instruction or training in military exercises. b rigorous discipline or methodical instruction, esp. when learning or performing tasks. c routine procedure to be followed in an emergency (fire-drill). d a routine or exercise (drills in irregular verb patterns). 3. colloq. a recognized procedure (I expect you know the drill). 4. any of various molluscs, esp. Urosalpinx cinera, that bore into the shells of young oysters. --v 1. tr. (also absol.) a (of a person or a tool) make a hole with a drill through or into (wood, metal, etc.). b make (a hole) with a drill. 2. tr. & intr. esp. Mil. subject to or undergo discipline by drill. 3. tr. impart (knowledge etc.) by a strict method. 4. tr. sl. shoot with a gun (drilled him full of holes). Derivatives driller n. Etymology: earlier as verb, f. MDu. drillen bore, of unkn. orig. 2. n. & v. --n 1. a machine used for making furrows, sowing, and covering seed. 2. a small furrow for sowing seed in. 3. a ridge with such furrows on top. 4. a row of plants so sown. --vtr. 1. sow (seed) with a drill. 2. plant (the ground) in drills. Etymology: perh. f. obs. drill rill (17th c., of unkn. orig.) 3. n. a W. African baboon, Papio leucophaeus, related to the mandrill. Etymology: prob. a native name: cf. MANDRILL 4. n. a coarse twilled cotton or linen fabric. Etymology: earlier drilling f. G Drillich f. L trilix -licis f. tri- three + licium thread |
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