He deliberately dressed down for the party.

他有意便装参加聚会。

Yes, it is divided into several sections: overwear, light clothing, hosiery, swimwear, corsage and so on.

对啊！还能分成很多个分支，比如，套装，便装，针织，泳装，胸衣等多个行业。

Gaultier did all that by working in his stock characters and garments: the matelot, the androgynous lady in the pantsuit, the trenches, the smokings, the corsets.

他通服装来赋予着者性格，比如水手装、女同性恋者的便装、战地军装、吸烟服、紧身胸衣等等。