简单文件传送协议

例句：

1. 1.The Simple File Transfer Protocol is used to transfer files between computers.
   简单文件传输协议用于在计算机之间传输文件。
2. 2.The Simple File Transfer Protocol is a popular choice for file sharing services.
   简单文件传输协议是文件共享服务中常用的选择。
3. 3.The Simple File Transfer Protocol allows users to upload and download files securely.
   简单文件传输协议允许用户安全地上传和下载文件。