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v (1)跳，躍(jump)[I，I+prep，I+adv]：A frog～s. 青蛙跳。Look before you～.(prov) 三思而后行?！玜cross a ditch/from a horse/into the river/out of the water/over a fence/through a window 跳過水溝/跳下馬/跳入河里/躍出水面/跳過籬笆/跳出窗戶;～for joy 高興得跳起來;The monkeys～ed from tree to tree. 猴子從一棵樹跳到另一棵樹上。～about/off/out 到處跳/跳下/跳出來;〖同〗 jump，spring;

(2)(使)跳過((cause to) jump over)[T+n，T+n+prep]：～a wall/a fence/a brook/a puddle 越過墻/籬笆/小溪/水洼;～a horse over a hedge/a fence 縱馬跳過樹籬/籬笆;

(3)快速移動，奔(move very quickly，rush)[I，I+prep，I+adv]：～into a taxi/to the telephone 跳上出租車/奔向電話;～downstairs/upstairs 奔下樓/上樓;～to fame/to stardom (fig) 一舉成名/躍入明星行列;～to conclusions (fig) 匆忙下結(jié)論;

leap at (v prep)抓住，立即接受(vt)：～at a chance/an opportunity 抓住機(jī)會/機(jī)會;～at an offer/an invitation/a proposal 欣然接受提議/邀請/建議;

n (1)跳，躍(jump)[C]：The frog gave a～. 青蛙跳了一下。take a～over an obstacle 越過障礙;The boy cleared the fence in one～. 男孩一躍跳過了籬笆。a～from the window 從窗口跳下;a～in the dark 冒險的行動，輕舉妄動;～year閏年;

(2)飛躍，劇增(sudden movement upwards or forwards;sudden increase)[C]：The company took a great～forward. 這家公司有了長足的進(jìn)步。an enormous/a great～forward 巨大的躍進(jìn);take a～to fame 一舉成名;a～in profits/production/the number of people out of work 利潤/生產(chǎn)/失業(yè)人數(shù)急劇增長;

by/in leaps and bounds迅速地，飛躍地：Sales are increasing by～s and bounds. 銷售額迅速增長。

→′leaping adj 波動的;′leap-frog n 跳背游戲;

【說明】leap的規(guī)則和不規(guī)則變化、過去式和過去分詞的用法參見DREAM。

【辨異】leap與bounce、jump和spring²的區(qū)別見BOUNCE。