这些功能主要由电子邮件系统、聊天服务以及文件传输工具来提供，以接近实时的速度传输数据、消息、音乐、图片和视频。
These are provided most notably by E-mail systems, chat services, and file-transfer facilities that offer nearly instant transfer of data, messages, music, photos, and videos.
选择区域之后，图片被进行注释，并自动粘贴到聊天记录区域，这样就可以简单地发送出去。
After you select an area, the picture can be annotated and then automatically pasted into the transcript area of the chat so that it can easily be sent.
没有图片上传、文件共享和视频聊天那些功能，仅仅有一个聊天窗口和一个文本输入框。
There’s no photo uploading, file sharing or video capabilities, just a text entry line and a chat widget.
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