A little black dress is dress typically short on both top and bottom, with little decoration, and useful for nearly any occasion. It is minimal¹ to call attention to the wearer without distracting.

Little black dress（多译作“小礼服”）指上下裁剪都较短的礼服，装饰很少，各类场合都适宜穿着。不扎眼但又能吸引别人注意。

Fashion historians ascribe the origins of the little black dress to the 1920s designs of Coco Chanel, intended to be long-lasting, versatile², affordable³, accessible to the widest market possible and in a neutral color. Its ubiquity is such that it is often simply referred to as the "LBD."

时尚历史学家称这样的小礼服可以追溯到上世纪20年代可可•香奈儿的设计，设计初衷就是要让其长久流行、多功能、价格适中、通行于各类市场而且颜色低调。这款小礼服几乎已无处不在，因此很多时候大家都将其简称为LBD。

For example:

The "little black dress" is considered essential to a complete wardrobe by many women and fashion observers.

很多女性和时尚达人都认为，没有小礼服的衣橱不能算是一个完整的衣橱。