求翻译：　　西式大礼服 也称大晚礼服，是一种袒胸露背的、拖地或不拖地的单色连衣裙式服装，并一定要配以颜色不同的帽子或面纱、长纱手套以及各种头饰和耳环、项链等首饰。大礼服是一种官方举行的正式宴会、酒会、大型正式的交际舞会等。是什么意思？

　　Western-style dress, or bacling evening gown, is a way to expose one's chest and back, drag-and-drag or not monochromatic dress clothes, and must be equipped with different colors of yarn hat or veil, long gloves and tiara and earrings, necklaces and other jewelry. Dress is an official held formal dinners, receptions, and large formal communication to the ball.