大学英语作文900字:emails and regular mails
what is the difference between regular mails and e-mails?as we know, regular mails have been usded for thousands of years,it is very inconvenience,for it took a long time to receive. besides, it costs you some money. while e-mails is very convenience, it take you only a few seconds to arrive the receiver and it is free to send .so more and more people use e-mails rather than regular mails.some people think that it will be replace the regular mails.