信函类：投诉+建议复合信 Directions: Suppose you have found something wrong with the mobile phone that you bought from a flagship store last week. Write a letter to the customer service center to...
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Nowadays, the smartphone has become one of the most important means of communication. Smartphones have many functions that provide people with a lot of conve...
Mobile phones are the main invention of modern technology.They are completely part of our daily lives If we look at our society,we can see that all kinds of people are using mobile phones.Maybe they h...
Recently,short messages become more and more popular with both the young and the old.People accept the convenient way of communication and some even cannot live without them.As to the reasons why so m...
