centre on /upon/ round /around…把…当中心;使…成为中心 centre (美 center ) n. 中心, 中央 century [ˈsentʃərɪ] n. 世纪, 百年 ceremony [ˈserɪmənɪ] n. 典礼, 仪式, 礼节 attend a wedding ceremony stand on ceremony 拘于礼节 without ceremony 粗鲁无礼,不拘礼节 certai...
Luxembourg makes all public transport free One square meter Luxembourg makes all public transport free. With a population of 602,000, Luxembourg is one of Europe's (1)___(small) countries - yet it suffers from major traffic jams. But that could be about to change. As of March 1, 2020...