firn編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看firnfirn — 名詞名詞1. granular snow that has survived one summer, turning into ice1.名詞釋義粒雪granular snow that has survived one summer, turning into ice例句The glacier is composed of compacted firn from many years.