v (1)跳，跃(jump)[I，I+prep，I+adv]：A frog～s. 青蛙跳。Look before you～.(prov) 三思而后行。～across a ditch/from a horse/into the river/out of the water/over a fence/through a window 跳过水沟/跳下马/跳入河里/跃出水面/跳过篱笆/跳出窗户;～for joy 高兴得跳起来;The monkeys～ed from tree to tree. 猴子从一棵树跳到另一棵树上。～about/off/out 到处跳/跳下/跳出来;〖同〗 jump，spring;

(2)(使)跳过((cause to) jump over)[T+n，T+n+prep]：～a wall/a fence/a brook/a puddle 越过墙/篱笆/小溪/水洼;～a horse over a hedge/a fence 纵马跳过树篱/篱笆;

(3)快速移动，奔(move very quickly，rush)[I，I+prep，I+adv]：～into a taxi/to the telephone 跳上出租车/奔向电话;～downstairs/upstairs 奔下楼/上楼;～to fame/to stardom (fig) 一举成名/跃入明星行列;～to conclusions (fig) 匆忙下结论;

leap at (v prep)抓住，立即接受(vt)：～at a chance/an opportunity 抓住机会/机会;～at an offer/an invitation/a proposal 欣然接受提议/邀请/建议;

n (1)跳，跃(jump)[C]：The frog gave a～. 青蛙跳了一下。take a～over an obstacle 越过障碍;The boy cleared the fence in one～. 男孩一跃跳过了篱笆。a～from the window 从窗口跳下;a～in the dark 冒险的行动，轻举妄动;～year闰年;

(2)飞跃，剧增(sudden movement upwards or forwards;sudden increase)[C]：The company took a great～forward. 这家公司有了长足的进步。an enormous/a great～forward 巨大的跃进;take a～to fame 一举成名;a～in profits/production/the number of people out of work 利润/生产/失业人数急剧增长;

by/in leaps and bounds迅速地，飞跃地：Sales are increasing by～s and bounds. 销售额迅速增长。

→′leaping adj 波动的;′leap-frog n 跳背游戏;

【说明】leap的规则和不规则变化、过去式和过去分词的用法参见DREAM。

【辨异】leap与bounce、jump和spring²的区别见BOUNCE。