可否俾我一d 晚禮服的英文name我?要正式formal english..可以用來作文果d

First, 晚禮服 can be evening gown or ball bown.

Based on most websites, the name is a combination of the adjective and ball gown. For example 露肩晚禮服 is Strapless Ball Gown.

Some commonly used adjectives are:
Bodice
Strapless
Strape
V-Neck
Waist
Embellished
Halter
Ruffled
Beaded
Corset
Satin Organza
Retro
Floral Embellished
Ruched Waist
Satin Velvet Flower
Ribbon Lace Bow
Sequinned
Trim

Also, it can be with other accessories. For example, Ruched Ball Gown with Satin Belt.

The combination of these should be enough for your purpse. If you want to know what exactly each mean, go to http://www.onlygowns.com/purchase/BallGowns.asp.