ballgown ['bɔ:lgaʊn]

例句:

• No doubt, the dress was stunning: a brilliant red silk organza ballgown with black swirls and an asymmetrical neckline.
  来自FORBES
• Items, she continues, that could be worn casually with a white shirt or a ballgown, such as diamond egg pendants with tassels.
  来自THETIMES
• The play starts with Betty finding an old ballgown in her loft, leading decades-old emotions to come pouring out.
  来自BBC