求翻译：具体分析报纸广告的各主要行业的表现，则更令人担忧。今年上半年，报纸广告三大行业均大幅度下滑，其中，房地产行业同比降幅为17.1%，汽车行业同比降幅为10.8%，而在前几年一直呈上升趋势的商业零售业居然也出现下滑，并达到9.1%的降幅。是什么意思？

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Analysis of the specific advertisement in the newspaper of the performance of all the major industries, and is even more worrying. In the first half of the year, the industry newspaper ads 3 has been a significant decline, in which the real estate industry with more than 17.1 % drop in automobile in

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Specific analysis of newspaper advertisements for all the major sectors of performance, is even more worrisome. The first half of this year, newspaper advertising three major sectors dropped, in which real estate per cent lower than 17.1%, 10.8% per cent lower than in the automotive industry, which

Concrete analysis newspaper advertisement each main profession performance, then more anxious.Early this year, the newspaper advertisement three big professions large scale glide down, among, the real estate profession with compares the range of fall is 17.1%, the automobile profession with compares