She hadn't heard his approach and jumped as the door opened.
她没有听见他走近的声音，所以门开时吓了一跳。
Do you want a ride? Jump in.
你想搭车吗？快上来吧。
The gentle touch of his hand on her shoulder made her jump.
他的'手轻轻地触了一下她肩膀便使她跳了起来。
With his last jump he equalled the world record.
他的最后一跳平了世界纪录。
The negotiations took a jump forward yesterday.
谈判昨天取得进展。