R, r
noun uk/ɑːr/ us/ɑːr/ Rs, R's or r's
(LETTER)
[ C or U ]（英语字母表的第18个字母）
the 18th letter of the English alphabet
(RIVER)
河，用在河流名称的前（或后）（river的缩写）
written abbreviation for river , used in writing before or after the name of a river
R Thames 泰晤士河
(DIRECTION)
右（right的缩写）
written abbreviation for right
(ROYAL PERSON)
国王;女王（用在国王或女王的名字后，Rex或Regina的缩写）
abbreviation for Rex (= king) or Regina (= queen), used after the name of a king or queen
Elizabeth R 伊丽莎白女王
R, r
adjective uk/ɑːr/ us/ɑːr/
(ROYAL)
皇家（用于英国的组织名称中，royal的缩写）
written abbreviation for royal , used in the names of organizations in the UK
He's an RAF (= Royal Air Force) officer. 他是一名英国皇家空军军官。
RSPH, the Royal Society for Public Health RSPH，即皇家公共卫生学会
(DIRECTION)
右的（right的缩写）
written abbreviation for right
R eye: 3.20/L eye: 3.25 右眼: 3.20／左眼: 3.25
(FILM)
[ C or U ] US（影片）限制级的（指17岁以下青少年无家长或监护人陪同不得观看，restricted的缩写）
abbreviation for restricted : used to refer to a film that people under 17 years of age can see only if a parent or guardian is with them
R, r
adverb uk/ɑːr/ us/ɑːr/
右的（right的缩写）
written abbreviation for right