extension lead
noun🔊/ɪkˈstenʃn liːd/
🔊/ɪkˈstenʃn liːd/
(also extension)
(both British English) (North American English extension cord)
an extra length of electric wire, used when the wire on an electrical device is not long enough 接长线路，延长线（电器上的电线加长部分） We'll have to use an extension lead. 我们得用延长线。