The second type is the telephone. By telephone, people can hear each other even if they are far apart.

第二种方式就是电话，凭借电话，即使是距离很远的两个人，也可以听到彼此的声音。

youdao

The second type is the telephone. By telephone, people can hear each other even if they are far apart.

第二种方式就是电话，凭借电话，即使是距离很远的两个人，也可以听到彼此的声音。

youdao