trefoil arch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trefoil archtrefoil arch — 名詞名詞1. a leaf-shaped arch with three overlapping circles1.名詞釋義三葉拱a leaf-shaped arch with three overlapping circles例句The cathedral's doorway features a beautiful trefoil arch.