extension lead
noun [ C ] UK uk/ɪkˈsten.ʃən ˌliːd/ us/ɪkˈsten.ʃən ˌliːd/ (US extension cord)
延长线路，延长线;电线延长部分
an extra wire used to take electricity to a piece of electrical equipment when it is an extra distance from the nearest socket
英汉双解词典收录81607条英汉双解翻译词条，基本涵盖了全部常用单词的读音、翻译及用法，是英语学习的有利工具。