音标发音英式音标 [ˈveɪ.pə ˌtreɪl]美式音标 [ˈveɪ.pɚ ˌtreɪl]英式发音 美式发音 基本解释（飞机飞行时留下的）凝结尾迹，拉烟。同根派生 英英字典剑桥英英字典 water vapour that looks like a line of white smoke behind an aircraft as it flies