run
My brother has no idea how to run a business.
I'm afraid the color will run if I wash your new skirt.
The discussion between the teachers and the students has run for two hours.
He has run short of money.
run在教材中的意思为“跑；奔跑”，作动词用。
上面句子中的四个run都用作动词，但是意思发生了变化，分别为“管理；经营”、“掉色，退色”、“持续”和“变得”。