进修

to undertake advanced studies / to take a refresher course

to go forward / to advance / to go in / to enter / to put in / to submit / to take in / to admit / (math.) base of a number system / classifier for sections in a building or residential compound

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

variant of 修[xiu1]