中文版：我想购买一辆自行车，请推荐一些品牌和型号。我主要用于城市通勤和周末休闲骑行，希望自行车轻便、耐用且性价比高，预算在1500-3000元之间，请推荐3款适合的产品。

英文版：I want to buy a bicycle. Please recommend some brands and models. I mainly use it for city commuting and weekend leisure riding. I hope the bicycle is lightweight, durable, and cost-effective, with a budget between 1500-3000 yuan. Please recommend 3 suitable products.

该提示词已在以下工具中验证有效：ChatGPT、Claude、Gemini、DeepSeek、Kimi