◎老生常談lǎoshēng-chángtán
[be trite and commonplace;common talk of an old scholar;commonplace;platitude; standing dish; sunday schools truth; twice-told tale] 原義為年老書(shū)生的平凡議論，泛指經(jīng)常說(shuō)起的老話
鄧颺怒曰:“此老生之常談耳!”輅曰:“老生者見(jiàn)不生，常談?wù)咭?jiàn)不談。”——《三國(guó)演義》
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