Members must conform to a strict dress code.
dress code的意思是?
dress code 意思是“着装规定”“衣着规范”“穿着需要”。如：
My school had a very strict dress code. 我学校的穿着规定很严格。
Most evenings there's a party and the dress code is strict—black tie only. 晚上大多都有派对，而且穿着需要非常严格——需要穿晚装礼服。
There is a strict dress code: no trainers or jeans. 有严格的着装规定：不许穿运动鞋和牛仔裤。