in·tra·mu·ral
adjective/ˌɪntrəˈmjʊərəl/
/ˌɪntrəˈmjʊrəl/
(especially North American English)- taking place within a single institution, especially a school or college
机构内部的；（尤指）学校内的，大学内的 - Jeff played intramural basketball in high school.
杰夫在中学时参加了校内篮球赛。
Word Originmid 19th cent.: from intra- ‘within’ + Latin murus ‘wall’ + -al. - Jeff played intramural basketball in high school.