to put new wine in old bottles; to express new ideas in old forms
这部电视剧虽然沿用了传统的叙事方式，但其探讨的家庭观念却是非常现代的，可谓是旧瓶装新酒。
Although this TV series uses traditional storytelling methods, the family values it explores are very modern; it's a true case of putting new wine in old bottles.
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