jumpstart

['dʒʌmp.stɑ:t]

vt. 助推启动, 发动
n. 助推启动法, 推动法

例句与用法：

I couldn't understand his lecture because he kept jumping from one topic to the next.

我听不懂他的演讲，他总是从一项内容跳到另一项内容。

The gang jumped an old woman in the subway.

一伙歹徒在地下人行道突然袭击一老妇人。

The loud bang made me jump.

砰的一声巨响吓了我一跳。

The horse jumped the fence.

那匹马跃过了栅栏。

He jumped to his feet and ran out of the office.

他一下子跳了起来，跑出了办公室。

The horse cleared all the jumps.

这匹马跳过了所有的障碍物。

词形变化：

动词过去式: jumped | 动词过去分词: jumped | 动词现在分词: jumping | 动词第三人称单数: jumps |