介绍：

Run errands 跑腿；出门办事
I have been running errands all day today and I am so tired!
我整个一天都在跑腿办事，太累了。

Fool's errand 徒劳的努力
Are you sending me on a fool’s errand again? The last time you sent me to get tickets, the play wasn’t even on.
你又让我去白跑一趟？你上次让我去买票的时候，那个演出根本就没有上演！

Be running on empty 勉强支撑
I've been working over 48 hours without sleep. And I am running on empty now.
我连续工作超过 48个小时都没有睡觉，现在就勉强支撑着。

Be running out of 用光...用完...
I'm running out of money. Could you lend me some?
我快没钱了。能借我一些吗？

Run over 溢出
The bathtub ran over and there was water all over the floor.
浴缸的水溢出来了，地板上到处都是水。

Run n. 演出连续上演的时期
The show had a record-breaking run in the New York theatre and it's a pity I haven't watched it.
这个演出在纽约的剧院破记录的上演很长时期。很可惜我没有看。