top-of-the-range
adjective UK uk/ˌtɒp.əv.ðəˈreɪndʒ/ us/ˌtɑːp.əv.ðəˈreɪndʒ/ (US top-of-the-line, uk/ˌtɒp.əv.ðəˈlaɪn/ us/ˌtɑːp-/)
（产品）顶级的，最昂贵的
used for describing something that is the most expensive in a group of similar products
a top-of-the-range Mercedes 一辆顶级奔驰车