jump on(或 upon)

• • 跳上：

    He jumped on the crowded bus.

    他跳上了拥挤的公共汽车。

  • 猛扑；突然袭击：

    The robber jumped on me in the dark.

    强盗在黑暗中向我猛扑过来。

    We're going to jump on the enemy patrol party later this evening.

    我们打算于今晚晚些时候突袭敌人巡逻队。

  • 叱责，责备：

    His father jumped on him for failure in the exam.

    他父亲因他没通过考试而对他大加责备。