n. 主修课, 成年人, 陆军少校

a. 主要的, 较多的, 大部分的, 成年的, 严重的

vi. 主修

[计] 主要, 主要刻度

n. a commissioned military officer in the United States Army or Air Force or Marines; below lieutenant colonel and above captain

n. British statesman who was prime minister from 1990 until 1997 (born in 1943)

n. a university student who is studying a particular field as the principal subject

n. the principal field of study of a student at a university