求翻译：First, it is convenient. Wherever you are, you can use this service to send a greeting to your friends or family. Second, it's cheap. One piece of message only costs 10 or 20 cents. It's no big burden to poor students. Another advantage is it can provide all kinds of information, like the weather forecast, train schedules, etc. You can use the service to reserve plane tickets, book hotels, make friends, or subscribe learning materials. It is so powerful now that I don't know what I can't do with the help of it.是什么意思？

待解决 悬赏分：1 - 离问题结束还有