Run off
(与某人) 私奔；复印；快速背诵出；使（比赛等）进行
His wife has run off with an old man.
他妻子跟一个老男人私奔了。
Could you run off three copies of the examination paper?
你能把试卷复印三份吗？
He has good writing skills. He could run off a composition in half an hour on this topic.
他有很好的写作技巧。他可以在半小时内就这个题目写一篇作文。
The final of the men’s 500-meter short track speed skating will be run off tomorrow.
男子500米短道速滑决赛将于明天举行。
Run on
（时间）流逝；继续下去；持续
The meeting ran on for hours.
会议持续了好几个小时。
Time is running on. Let’s make a choice as soon as possible.
时间过得太快了。我们还是尽快做出选择吧。
Run out of
用完
He has run out of money, and has to borrow some from his brother.
他的钱用完了，只好向他哥哥借一些钱。
Run over
溢出；迅速浏览
The water is running over the edge of the sink.
水从水槽的边缘溢出。
Irene usually runs over her courseware before the lecture.
艾琳通常在讲课前先浏览她的课件。
A mouse was run over by a car and got killed.
一只老鼠被车碾死了。
