run out phr v [I] 1 to use all of something, so that there is none left 用完，耗尽: + of We've run out of sugar. 我们的糖用完了。 I'm running out of ideas. 我快没有主意了。 2 to come to an end, or no longer be useful or acceptable 结束，期满，失效: Time is running out. 时间快到了。 My membership runs out in September. 我的会员资格九月份到期。