蹲班[dūn bān]
词典蹲班
词典f
1. \u0039\u0031\u0031\u67E5\u8BE2\u00B7\u82F1\u8BED\u5355\u8BCD
1. to repeat the year's work; to stay down：升级to be promoted to a higher grade | 蹲班to repeat the year's work; to stay down | 补考make-up examination