golden wedding anniversary
noun [ C ] uk/ˌɡəʊl.dən ˈwed.ɪŋ / us/ˌɡoʊl.dən ˈwed.ɪŋ / (US also golden anniversary); (UK also golden wedding)
结婚50周年纪念日,金婚纪念日
the day exactly 50 years after a marriage, often celebrated with a party
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