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n.英语字母中的第十八个字母
abbr.电阻（resistance）；比率（ratio）；医生处方（recipe）
1、gage r───n.计量者；检量官（等于gauger）
2、b r───abbr.英国铁路公司 (British Rail)
3、age r r───年龄r r r
4、r thing───r事件
5、a r r───abbr.到达（arrival，arrive）
6、e r and r───e r和r
7、t r t r───t r t r
8、r and r───abbr.休息和娱乐 (Restand Recreation)
9、so r r y───int.对不起，抱歉（表示委婉的拒绝等）；adj.遗憾的；对不起的，抱歉的
1、Unable to settle on a finale among the many farewells and epilogues in J. R. R. Tolkien's text, director Jackson decided to use them all.───由于无法从J.R.R。托尔金小说中众多的告别场面和尾声中选择哪一个作为结局，导演杰克逊决定将他们全部纳入影片中。
2、MAN says it will be saving some euro500m a year, mainly in component sourcing, administration and R&D within the next three years.───据曼预计合并将为公司每年节省约5亿欧元的开支，这些开支主要来自零配件采购，今后三年内则还会来自管理和研发方面。
3、Winter spas are now the best choice for serious R & R.───冬季温泉是当下最佳的选择。
4、"There used to be 13 major pharmaceutical companies with full-blown programmes of contraceptive R&D. Now there are none, " she said.───她表示：“从前有13家拥有全面方案的制药公司参与皮云产品的研发，但现在连一家也没有了。”
5、Twenty-five years ago Pattaya was a sleepy fishing village. Then it was discovered by American soldiers on R & R from Vietnam.───25年前，帕堤亚是个平静的渔村。后来被从越南战争中撤出休整的美军士兵所发现。
6、As a young man, R. had a strong sense of social responsibility, believing that art has a duty to society.───罗兰作为青年时便有强烈使命感，相信艺术对社会负有重责。
7、Prof. WIENER: You know, I've always been fascinated by that sentence. This is in J. Edgar Hoover's letter to H. R. Haldeman.───维纳：你知道吗，我一直着迷于那句话，乐死我了。
8、Politicians began to use the dreaded R-word: recession.───政客们开始使用令人恐惧的R字头词：recession（意为：经济衰退）。
9、It is one of the most beautiful compensations in life that no men can sincerely try to help another without helping himself. - R. W.───Emerson人生中最美丽的补偿是，凡设法真诚地去帮助他人，也就在帮助自己。
1、It is a digital phase-locked loop circuit. The basic phase-locked loop consists of a phase-frequency detector, a R- C filter and voltage controlled multivibrator.
2、Introducing a specific heat ratio K and a gas constant R- for constant lag flow, fundamental relationships analogous to those of pure gas flow are derived.