claim credit for oneself and put on airs; pride oneself on one’s merits;become conceited (/arrogant) because of one’s achievements; be puffed up with pride on account of one’s merits
? 不能以 “老革命” ～，不能革命到一半就中途而廢。You must not pride yourselves on being “veteran revolutionaries” and become conceited and stop half way in making revolution.
居功自傲
become arrogant because of one’s achievements; pride oneself on one’s own merits
居功自傲jū ɡōnɡ zì ào
自以為有功勞而驕傲自大。claim credit for oneself and become arrogant, become arrogant because of one’s achievements, claim credit and put on airs