通信双方建立连接后可以双向传输文本信息和各种格式的文件，并且在双方对发文件的同时仍然可以进行双向的文本信息通信。

After the connection is created, the two sides can make a two-way transmission of both text message and files in all kinds of format.

youdao

通信双方建立连接后可以双向传输文本信息和各种格式的文件，并且在双方对发文件的同时仍然可以进行双向的文本信息通信。

After the connection is created, the two sides can make a two-way transmission of both text message and files in all kinds of format.

youdao