upper and lower case英语标准发音：upper and lower case英式发音：美式发音：翻译中文大写和小写upper and lower case - 基本释义[词典1]大小写upper and lower case - WEB词典upper and lower case大写与小写体大写和小写上标和下 参考资料： 1.百度翻译：upper and lower case2.有道词典：upper and lower case3.爱词霸：upper and lower case
