idiom > sense of propriety can, or may (used at the beginning of a question)
Contents
Can advance and retreat
　　Explanation: That the advancement qualified, Chutui who failed.
No. 2
　　进退可否
　　拼音：jìn tuì kě fǒu
　　解释：指进升合格者，黜退不合格者。
　　出处：《魏书·郭祚传》：“陛下圣镜照临，论才授职，进退可否，黜陟幽明。”