必修课

required course / compulsory course

certainly / must / will / necessarily

(of an academic course) required / compulsory

to decorate / to embellish / to repair / to build / to write / to cultivate / to study / to take (a class)

variant of 修[xiu1]

subject / course / CL:門|门[men2] / class / lesson / CL:堂[tang2],節|节[jie2] / to levy / tax / form of divination