只谈风、月等景物。隐指莫谈国事
清·张岱《游山小启》：“喜作闲人，酒席间只谈风月。”
只谈风月作谓语、定语；指不谈政事。
There is no romance to talk about but/except / beyond an affair.只谈风月，不谈情。
= There is no more romance to talk about than an affair.
