柯林斯词典tail off (tailing,tailed,tails) 1. PHRASAL VERB When something tails off, it gradually becomes less in amount or value, often before coming to an end completely. 逐漸減少 Last year, economic growth tailed off to below four percent. 去年，經濟增長率逐漸降到了4%以下。 返回 tail off