在电话普及之前，我们都在用信件交流的翻译：Before the phone popularity, we communicate by letter 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

Spread on the phone, we are in communication with the letters

Before the phone popularity, we communicate by letter

Popularizes before the telephone, we all are using the letter to exchange

In the telephone penetration, we are all in use before exchange letters

Before the phone popularity, we communicate by letter