If you use a modem to dial in from your PC or Mac, you first have to get stuff to your Internet service provider and then get it to your very own machine--not so easy.

• 如果你使用一台modem从你的PC机或Mac机接入的话，首先要把需的内容转移到Internet服务提供者处，然后再把它们拷贝到你自己的机器上，这就不那么容易了。