"紫色的长裙" 用英语叫做 "purple dress"。
"purple" 是英语中的一个颜色词，意思是紫色。它来自古希腊语 "porphura"，表示贵族专用的紫色。
"dress" 是英语中的一个服装词，意思是连衣裙。
例句:
She looked stunning in her purple dress at the party. (她穿着紫色长裙参加聚会，看起来非常美丽。)
The bridesmaids wore matching purple dresses at the wedding. (伴娘们在婚礼上都穿了相同颜色的长裙。)
He bought his daughter a new purple dress for her birthday. (他为女儿的生日买了一条新的紫色长裙。)