文明守纪的学生英文可以翻译为 "well-behaved student" 或 "well-mannered student"。

这个短语的来源可以追溯到拉丁文，"manners" 一词来自拉丁文的 "manus"，意思是 "手" 或 "习惯"。在英文中，"manners" 指的是一个人的礼貌、行为准则和文明行为。"Well-behaved" 或 "well-mannered" 则意味着一个人的行为得体、有礼貌、遵守社会规范。

以下是几个关于文明守纪的学生的英文例句，并附上中文翻译：

She is a well-behaved student who always follows the rules. (她是一个文明守纪的学生，总是遵守规则。)
He is a well-mannered student who is respectful to his teachers and classmates. (他是一个文明守纪的学生，对他的老师和同学都很尊重。)
The school is proud of its well-behaved students who consistently demonstrate good manners. (学校为其文明守纪的学生感到自豪，他们总是表现出良好的礼貌。)