题目内容：
阅读下面的对话，根据其内容写一篇有关背包客backpackers的说明文。 要求：
1.所写短文应与对话相关内容意义相符，涵盖其要点。
2.用你自己的语言来表达，可以改写对话中的句子，但不可以照抄原句。
注意：词数80词左右。
Tom：I know you travel a lot.Have you ever met any backpackers?
Alice：Yes，I have.
Tom：Some tourists call themselves backpackers while others don’t.But what exactly is abackpacker?
Alice：It just means people who travel around in a backpack.I used to do that when l wasyounger.
Tom：Really?Are backpackers all young people?
Alice：N0，they are of different ages，old and young，male and female.But the majority ofthem are young people.They would like to go out and see the world before they go tocollege，or settle down.
Tom：Some backpackers think they are somehow different from other tourists.They wouldsay，“I’m not a tourist，I’m a traveler”，0r“I’m not a tourist，I’m a backpacker”.What do you think?
Alice：Some backpackers strongly identify themselves as a community other than tourists，and think they are better than tourists in some way.They would go to a place and only talk to other backpackers.But I’m not really sure I can agree with that.
Tom：which country are backpackers from，the United States?
Alice：They are of different nationality.But people in some countries，say，Canada，do loveto travel beRer.
Tom：Well，good luck with your next travel!
Alice：Thanks!
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