求翻译：Are you able to send a letter with pict ures and sounds to someone somewhere i n the world without a stamp on it? Usin g a computer you can send e-mails quick ly and easily. The post is much slower than e-mail. E-mail can send its messa ge to the other side of the world in sec onds . E-mail is easy to use and it save s是什么意思？

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