“听说你想学好中文”这句话的英文表达可以是 "I heard that you want to learn Chinese well."
来源：这句话是根据中文语法和语言结构翻译成英文的。
一些英文例句：
"I want to become fluent in Chinese." (我想变得流利地说中文。)
"I'm studying Chinese to improve my language skills." (我正在学习中文来提高我的语言技能。)
"I'm taking Chinese classes to learn the language better." (我在上中文课来更好地学习这种语言。)