There are 1,048,576 bytes in a Megabyte, so 7,490 text messages are transmitted in each one.
一兆字节有1,048,576个字节，所以每兆字节里能传输7,490条短信。
Text messages take up very little space - about 140 bytes, as they are being transmitted.
短信传输时占用非常小的空间——140个字节。
Also, total network bytes received and transmitted increased 22%.
另外，收发的网络字节总数增加了22%。
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