奥迪集团上半年营收同比减少9.5%的全部拼音为：Audi Group's revenue in the first half of the year decreased by 9.5% year-on-year.。
奥迪集团上半年营收同比减少9.5%英文可以简单翻译为：Audi Group's revenue decreased by 9.5% year-on-year in the first half of the year.。

简单的来说根据奥迪集团财报，今年上半年营收为309亿欧元，同比减少9.5%;营业利润为19.82亿欧元，营业利润率为6.4%,净现金流为11.3亿欧元。 这意味着奥迪集团的销售额在今年上半年同比下降了9.5%。