单词	sharpen
释义	sharpensharp‧en /ˈʃɑːpən $ ˈʃɑːr-/ ●○○ verb Verb Table VERB TABLE sharpen Simple Form Present I, you, we, they sharpen he, she, it sharpens Past I, you, he, she, it, we, they sharpened Present perfect I, you, we, they have sharpened he, she, it has sharpened Past perfect I, you, he, she, it, we, they had sharpened Future I, you, he, she, it, we, they will sharpen Future perfect I, you, he, she, it, we, they will have sharpened Continuous Form Present I am sharpening he, she, it is sharpening you, we, they are sharpening Past I, he, she, it was sharpening you, we, they were sharpening Present perfect I, you, we, they have been sharpening he, she, it has been sharpening Past perfect I, you, he, she, it, we, they had been sharpening Future I, you, he, she, it, we, they will be sharpening Future perfect I, you, he, she, it, we, they will have been sharpening Examples EXAMPLES FROM OTHER DICTIONARIES Sharpen all your pencils before the test. My mother used a special stone to sharpen kitchen knives. Nick sat down at his desk, sharpened his pencil and began to draw. Recent developments have given our leaders a sharpened sense of responsibility. The images sharpened on screen as the camera focused. This course will give students a chance to sharpen their problem-solving skills. EXAMPLES FROM THE CORPUS A brief moon between clouds outside sharpened the lines of boxwood that led to the wooden gate. At San Quentin, Kirkpatrick stabbed one of his lawyers 17 times with a sharpened toothbrush. Below 200 K the chains are virtually immobile, but above 200 K the lines sharpen as rotation begins. In the dying light other songbirds sharpen calls and phrases, some learned in far places, other continents. It wasn't electric, and they never sharpened the barbed wire at the top. Knock it senseless every hour when it raised its fanged head and decided to sharpen its nasty little claws. The resulting increase in production should sharpen the instructional focus of the materials. Thesaurus Longman Language Activatorto make something sharp► sharpen · Nick sat down at his desk, sharpened his pencil and began to draw.· My mother used a special stone to sharpen kitchen knives. Collocations COLLOCATIONS FROM OTHER ENTRIES► sharpen a knife (=make it sharper)· What's the best way to sharpen a knife? COLLOCATIONS FROM THE CORPUSADVERB► up · You've got all your other senses, sharpened up nicely.· The antagonistic interactions tend to sharpen up some otherwise fuzzy boundaries, since they serve to exaggerate the differences.· Instead of sharpening up their act, they sharpen up their prices and cover their tracks.· They're worth watching and they deserve better than they're getting, but they've got to sharpen up in front of goal.· The Rogich plan is to sharpen up the focus, as well as the pace.· Too many guys down there with their ears all sharpened up. NOUN► edge · Downward facing points are sharpened along their edges and not across the front faces.· See, it has no proper point, and it is sharpened along one edge only.· The main effect of liberalisation was to sharpen the edge of peasant discontent.· Erosion had sharpened its edges and although the drivers trundled gently in bottom gear, there were two punctures. ► focus · The Rogich plan is to sharpen up the focus, as well as the pace.· The resulting increase in production should sharpen the instructional focus of the materials.· He sharpens the focus to the right leg and quickens his walk immediately.· While reading the anonymous notes the glimmering of an idea had come to him but he could not sharpen the focus.· He blinked, glanced her way, and then blinked again, his eyes sharpening into sudden focus. ► knife · While he sharpens his knife the priest arrives.· Anderson towered above it, carefully sharpening his knife. ► pencil · Philip sharpened one of his pencils that Lee must have broken, sharpened it too much and the lead broke again.· R.: an ordinary clipboard and a sharpened yellow pencil.· Livesey is quite capable of looking after that particular angle, and no doubt he is sharpening his pencil for this purpose already.· I used to take candy bars, little toys, sharpened pencils, anything small and easy to mail to school.· Pursuivant sharpened his pencil, opened his notebook, and wrote down the date.· He also threatened her by holding a sharpened pencil tip to one of her eyes.· She pulled a fresh pile of paper from her desk drawer, sharpened her pencil and got down to work.· I arrange my papers in an orderly fashion on my driftwood desk and sharpen my pencils, as I always do. Word family WORD FAMILYnounsharpenersharpnesssharpadverbsharpsharplysharpishadjectivesharpverbsharpen 1[intransitive, transitive] to make something have a sharper edge or point, or to become sharper:  Anne sharpened her pencil and got out her homework.2[transitive] to make a feeling stronger and more urgent:  A series of attacks have sharpened fears of more violence.3[transitive] (also sharpen something ↔ up) to improve something so that it is up to the necessary standard, quality etc:  The course will help students sharpen their writing skills.
随便看	uncommon uncommonly uncomplaining uncomplainingly uncomprehending uncomprehendingly uncompromising uncompromisingly unconcern unconcerned unconcernedly unconditional unconditionally unconfirmed unconnected unconscionable unconscionably unconscious unconsciously unconsciousness unconsidered unconstitutional unconstitutionally uncontested uncontrollable

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