1 N-VAR 英语字母表的第18个字母 R is the eighteenth letter of the English alphabet. 英语字母表的第18个字母
3 N-TITLE 国王,女王(书面缩略形式,为拉丁文rex或regina的简写) R is a written abbreviation meaning king or queen. R is short for the Latin words 'rex' and 'regina'. 国王,女王(书面缩略形式,为拉丁文rex或regina的简写)
4 (用于首字母为r的一些单词的缩写,如在地图上代表river) R is used as an abbreviation for words beginning with r. For example, it is used on maps as a written abbreviation for 'river'. (用于首字母为r的一些单词的缩写,如在地图上代表river)
5 R级电影(美国电影分级,17岁以下未成年人需由成人陪同观看) In the United States, some cinema films are marked R to show that children under 17 years old are only allowed to see them if an adult is with them. R级电影(美国电影分级,17岁以下未成年人需由成人陪同观看)
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