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adj (1)鋒(銳)利的，尖的(having a thin edge that can cut or a point that can pierce)：a～axe/knife/sword 一把鋒利的斧子/刀子/劍; a～pin/needle 一枚尖利的大頭針/縫衣針;These roses have～thorns. 這些玫瑰有尖刺。You can't write neatly if your pencil isn't～. 如果你的鉛筆不尖你就寫不工整?！纪絧ointed;〖反〗dull，blunt;

(2)急劇(轉(zhuǎn))的((of a change in direction)sudden，abrupt)：a～bend/curve in the road 路上的一處急轉(zhuǎn)彎;a～slope 陡坡;make a～left turn 向左急轉(zhuǎn)彎;〖同〗sudden，abrupt，extreme;〖反〗gradual，gentle;

(3)突然(急劇)的(steep and sudden)：a～rise/fall/drop in prices 物價(jià)急劇上漲/下跌/下跌;a～food-price increase 食品價(jià)格的急劇上漲;a～rise in crime 犯罪率急劇上升;a～drop in temperature 溫度急劇下降;〖同〗sudden，abrupt，rapid，extreme;〖反〗gradual，gentle;

(4)鮮明(清楚)的，明晰的((of pictures，outlines，etc) clear and distinct)：a～photograph/photographic image 反差大的照片/影像;the～outline of the mountain 山峰清晰的輪廓;the～contrast between the lives of the poorest and the richest members of society 社會(huì)成員貧富生活明顯的反差;in～focus 聚焦準(zhǔn)確的;The photograph isn't very～. 照片不是很清晰?！玠ifferences of opinion 意見的嚴(yán)重分歧;〖同〗 clear，well-defined;

(5)強(qiáng)烈的，辛辣的，刺鼻的((of tastes or smells) biting)：a～flavour/taste/cheese 辛辣的風(fēng)味/辛辣的味道/刺鼻的干酪;the～smell of the acid 酸的刺鼻氣味;This cheese tastes very～. 這種干酪味道很沖?！纪絙iting，bitter，cutting，piercing;〖反〗mild，sweet;

(6)刺骨的，強(qiáng)(劇)烈的(hurting suddenly and strongly;keen)：a～pain 劇痛;a～frost/wind 寒冷的冰霜/刺骨的風(fēng);

(7)尖銳的，刺耳的((of sounds) short，sudden and quite loud;pierce)：a～cry of distress 痛苦的尖叫聲;a～crack 尖銳的斷裂聲;the～blast of the horn 尖歷的號(hào)聲;She has such a～voice. 她的聲音如此刺耳?！纪絪hrill，piercing，penetrating，high-toned;〖反〗soft;

(8)敏銳的，機(jī)警的(alert or quick to notice or understand;acute)：a～mind/child/intelligence 敏銳的頭腦/伶俐的小孩/機(jī)智;～eyes/ears 靈敏的眼睛/耳朵;She has a～nose/sense of smell. 她嗅覺靈敏。be～at mathematics 敏于數(shù)學(xué);keep a～watch (on the market)/look-out 密切注意(市場(chǎng)動(dòng)態(tài))/嚴(yán)密警戒;(as)～as a needle 非常聰明;〖同〗keen，acute，quick;〖反〗dull，dim，slow，unaware;

(9)尖刻的，嚴(yán)厲的((of words) intended to hurt;harsh;severe)[A (with)](derog)：～words 刻薄的言詞;a～criticism/rebuke/remark/scolding 尖銳的批評(píng)/嚴(yán)厲的指責(zé)/刻薄的言語(yǔ)/嚴(yán)厲的申斥;be～with sb 訓(xùn)斥某人;His～words hurt her. 他尖刻的言詞刺痛了她。He could bear his wife's～tongue no longer. 他再也不能忍受他妻子那刻薄的話語(yǔ)。a～-tongued woman說話刻薄的女人;〖同〗 harsh，unkind，bitter，severe;〖反〗gentle，kind，tender，polite，warm;

(10)迅速(敏捷)的，活躍的(quick;lively)[通常作 attrib]：go for a～walk 輕快地去散步;a～struggle/contest 激烈的斗爭(zhēng)/競(jìng)爭(zhēng);a～run 競(jìng)爭(zhēng)激烈的賽跑;a short，～shower of rain 一陣驟雨;～work 完成得干凈利落的工作;

(11)過分精明的，狡猾(不擇手段)的(clever，often in a dishonest way)(derog)：a～trader/lawyer/accountant 精明的商人/律師/會(huì)計(jì);～practice 不擇手段的行徑;He is too～for me. 他太狡猾，我對(duì)付不了。Sometimes the customer may be～er than the dealer. 有時(shí)顧客可能比商人更加精明?！纪絛ishonest，cunning，foxy，tricky;〖反〗direct，straightforward，honest;

(12)時(shí)髦的，漂亮的(very stylish;elegant;smart)[通常作attrib](infml)：a～suit 一套時(shí)髦的衣服;a very～dresser 衣著漂亮的人;

(13)升(高)半音的，偏高的((of a note，an instrument，etc) raised a semitone;too high in pitch)[無(wú)comp]：in the key of F～用升F調(diào);play a C～minor 以升C小調(diào)演奏;a～-toned musical instrument 一件高音樂器;(note) sound～(音符)偏高;

look sharp 1)當(dāng)心：The guide told us to look～because there were rattlesnakes around. 向?qū)Ц嬖V我們要當(dāng)心，因?yàn)楦浇许懳采摺?)快點(diǎn)：Bring me the books and look～. 把那些書給我拿來，快點(diǎn)。

→′sharpen v(使)變尖銳(清晰);′sharpener n 削……的用具;′sharper，′cardsharper n(尤指以賭牌行騙的)騙子手;′sharpish adj 相當(dāng)鋒利的;′sharply adv 尖尖地;急劇地;鮮明地;尖刻地;′sharpness n 尖銳;′sharp-′eyed adj 眼快的，視覺敏銳的;′sharpshooter n 神槍手;′sharp-′sighted adj 目光敏銳的;′sharp-′witted adj 機(jī)智的，靈敏的，聰明的;

adv(1)整;準(zhǔn)時(shí)地(exactly at the stated time)[無(wú)comp]：Tell him I'll be there at eleven～. 告訴他我將在11點(diǎn)整到那里。〖同〗punctually，precisely，exactly;

(2)突然地(suddenly;abruptly)(infml)：stop～突然停下;turn～left/right 向左/右急轉(zhuǎn);

(3)(調(diào)子)偏高地((of music) above the correct pitch)：sing～唱的調(diào)子偏高;

【辨異】sharp與intelligent和keen的區(qū)別見 INTELLIGENT。