到处都看到人们在栽电线杆拉线用于传输电报信息。由于施工质量差，电线没有被拉直。

Men everywhere seemed to be putting up poles with strings of wire for carrying telegraphic messages.

youdao

到处都看到人们在栽电线杆拉线用于传输电报信息。由于施工质量差，电线没有被拉直。

Men everywhere seemed to be putting up poles with strings of wire for carrying telegraphic messages.

youdao