这件连衣裙穿在你身上真好看用英语怎么说

The dress looks nice on her.

重点词汇

连衣裙 (woman's) dress ; one-piece dress ; frock

好看 good-looking ; nice ; interesting ; honored ; on the spot

你穿这条连衣裙很漂亮. You are beautiful in this dress. 这敬游察条连衣裙穿在你身上很漂亮. This dress is beautiful on you.

This piece of dress is quite beautiful on her.
从语境的角度考虑，由于裙亮茄子好不磨亏好看是自身的属性，忠于原文用is可能稍欠妥当，故可以灵活一些改用look。此时翻译即为：
This piece of dress looks quite beautiful on her.

你穿上这件裙子真是太漂亮了
It's very nice of you to wear this dress.

你穿上这件裙子真是太漂亮了
It's very nice of you to wear this dress.