。。。。。。 which was wound round the electric wires of a 16000-volt power line
he noticed the remains of a snake which was wound round the electric wires of a 16000-volt power line新概念第二册53课中的一句, electric wires 和power line都是电线,为什么要重复说2次?字面上怎么翻译(这两次出现的“电线”?)