having escaped or run away from somewhere失控的;逃跑的
a runaway child sleeping on the streets离家出走露宿街头的小孩
a runaway bride (= who ran away from her wedding)逃婚新娘
out of control失去控制的
A runaway bus/horse caused chaos on the streets.一辆公共汽车失控了/一匹马脱缰了,导致街道上一片混乱。
We have to rein in our runaway spending.我们必须止住我们失控的花费。
Runaway success is surprisingly sudden or great.突如其来且巨大的(成功)
Her first novel's runaway success came as a great surprise.她的第一部小说大获成功,真是大大出人意料。
He is the runaway leader at the top of the competition scoreboard.他在竞赛中出人意料地遥遥领先,高居比分牌榜首。