jog是什麼意思解釋一下

例句：

I began by jogging in the park and worked up to running five miles a day.

我開始在公園裡慢跑，後來逐漸增加到一天跑五英里。

It takes a lot of self-discipline to go jogging in winter.

在冬天跑步是需要很大的自律力的`。

Someone jogged her elbow, making her spill her coffee.

有人不小心輕輕碰了一下她的胳膊肘兒，把咖啡弄灑了。

They set off at a jog up one street and down another

他們開始沿著一條又一條的街道慢跑。