high-classˌhigh-ˈclass adjective [usually before noun] 
of good quality and style, and usually expensive质量上乘、格调高雅，通常价格昂贵de buena calidad y estilo, y generalmente carode boa qualidade e estilo, e geralmente caro質が高く上品で、通常は高価な품질과 격조가 높고 보통 비싼 OPP low-class: 
a high-class restaurant一家高档餐厅un restaurante de alta categoríaum restaurante de alto padrão高級レストラン고급 레스토랑
of good quality and style, and usually expensive质量上乘、格调高雅，通常价格昂贵de buena calidad y estilo, y generalmente carode boa qualidade e estilo, e geralmente caro質が高く上品で、通常は高価な품질과 격조가 높고 보통 비싼 OPP low-class: a high-class restaurant一家高档餐厅un restaurante de alta categoríaum restaurante de alto padrão高級レストラン고급 레스토랑