A “town of culture” could be not just about the arts but(also省略) about honoring a town’s peculiarities—helping sustain its high street, supporting local facilities and above all celebrating its people.
参考译文:一座文化之镇”可能不仅与艺术有关,而且还尊重一个城镇的特色——帮助维持其商业发展,支持当地的设施建设,最重要的是赞美它的人民。
解答:破折号起解释说明前面名词“peculiarities”的作用,后面三个并列动名词被用来解释前面名词“peculiarities(特色)”。