pluck cinnamon flowers in the palace of the moon—succeed (/obtain a degree) in civil examinations
❍ 这一去，可是要 ‘～’了！ 我不能送你了。(《红楼梦》 109)❶So you’re going to ‘pluck fragrant osmanthus in the palace of the moon’.I’m sorry I can’t see you off.
❷I wish you every success.I’m sorry I can’t see you off.
蟾宫折桂chan gong zhe gui
pluck the laurel branch for Toad Palace—obtain a jinshi degree
蟾宫折桂chán ɡōnɡ zhé ɡuì
蟾宫：月宫。旧指应试考中。win the laurels in civil examinations,pass the examinations for the highest degree