1.jump 是个通用词,不问是从高处跳到低处,或从一点跳到另一点,都可使用
I can jump off the box, but I can't jump off that wall.
我能从这只箱子上跳下去,但是我不能从那个墙上跳下去。
After jumping about on the carpet and twisting the human frame into uncomfotable positions, I sat down at the breakfast table in an exhausted condition.
在地毯上乱跳一阵,并把身躯扭曲到令人不舒服的各种姿势以后,我在精疲力尽的情况下坐在早餐桌旁。
He is practising the high jump.
他在练习跳高。
2.leap 则比较正式,常用于文学或比较高雅的文字中。
They all leapt out of their sleeping-bags and hurried outside.
他们都从睡袋里跳了出来并急忙跑到外面。
Look before you leap.
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