写作思路：通过询问电脑的配置来了解二手电脑，根据对方的介绍写出文章。
正文：
I'd like to buy a second-hand computer. Can you introduce me to a durable brand and the status of the computer.
我想要购买一台二手电脑，您能给我介绍一款耐用的品牌吗，并且介绍一下电脑的状况。
At the top of the list, the brand of the computer is HP, in black color.
首先，电脑品牌为惠普，黑色。
In addition, the laptop is at good condition,with its CPU and inner memory satisfying。
此外，电脑状态良好，cpu和内存都令人满意。
So you can write papers , watch videos or listen to music and so on with it as morally as you do with a brand-new one.
所以你可以像使用全新电脑那样正常用它来写论文、看视频或者听歌等。
Therefore,its function, generally speaking could meet you needs, and I promise that you would love it.
因此，总体来讲这台电脑可以满足你的需要，我也相信你会喜欢它。
Last but not least, I would like to sell the laptop at 1500 yuan, personally an attractive price.
最后，我想以1500卖出这台电脑，个人认为这是个有吸引力的价格。
Thank you.
谢谢您。
【参考范文】
Advertisement
This advertisement is to sell a laptop I used . The detailed information is listed as the following.
At the top of the list, the brand of the computer is HP, in black color.
In addition, the laptop is at good condition,with its CPU and inner memory satisfying, so you can write papers , watch videos or listen to music and so on with it as morally as you do with a brand-new one.
Therefore,its function, generally speaking could meet you needs, and I promise that you would love it. Last but not least, I would like to sell the laptop at 1500 yuan, personally an attractive price.
If you have any questions concerning the laptop, please do not hesitate to contact me. And I can be reached at 86543217 or [email protected].
Or to know more details about the laptop, you could also visit me at my dorm: 101Room at Dorm 1. Please contact me by telephone before visit. Thank you very much.
Li Ming
【参考译文】
广告
本则广告是要售卖一台二手笔记本电脑。详细信息如下:
首先，电脑品牌为惠普，黑色。此外，电脑状态良好，cpu和内存都令人满意，所以你可以像使用全新电脑那样正常用它来写论文、看视频或者听歌等。因此，总体来讲这台电脑可以满足你的需要，我也相信你会喜欢它。最后，我想以1500卖出这台电脑，个人认为这是个有吸引力的价格。
关于这台笔记本，如有任何疑问敬请垂询。可以致电86543217或发送电子邮件至[email protected]. 或者如要详细了解这台电脑，欢迎到访我的宿舍。到访前请先致电。非常感谢。
李明
购买电脑注意事项：
1、认真查看：在购买的时候应该检查一下机子是不是返修机，还要检查机器的表面有没有被螺丝拧过的痕迹，如果有的话，坚决不要这样的机器。
2、多种选择：可以多选择几款笔记本作为候选，然后不要着急买下来，可以上网查一下网上的价格与技术参数，看看是不是自己想要的电脑。
3、讨价还价：确定购买的时候，可以与卖家讨价，但是在砍价的时候还要注意与销售员说话的态度，一定要客气，让他们感觉到你是真的很想要买，但是在价格方面不可松懈。
4、正规电商：在购买电脑的时候还要考虑到产品的规模与实力，最好是能够在三包范围之内的。
本回答被网友采纳