柯林斯词典mu /mjuː/ 1. N the 12th letter in the Greek alphabet (Μ, μ), a consonant, transliterated as m 希腊字母表第12个字母mu N 1. the INTERNET DOMAIN NAME for Mauritius 毛里求斯 返回 mu剑桥词典the 12th letter of the Greek alphabet (希腊语字母表的第12个字母) 返回 mu