Why Blue Jeans Popular?

参考范文：

Everywhere you go, you'll see people, male or female, old or young, wearing jeans. Indeed, jeans have grown more and more popular since the first pair was born. In newspapers and magazines or on TV you often come across such ads as "Buy these jeans they are cheap. Buy them — they are hard wearing. Buy them — they are comfortable." I think there is no cheating in these ads.

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In the first place, jeans are so cheap that almost everyone can afford to buy a pair, especially for students and wage-earners. No one would not pay less and get more.