I'll only be small tonight but there will be a wedding ,you have to look the part.怎么翻译

I'll only be small tonight but there will be a wedding ,you have to look the part.怎么翻译
I'll only be small tonight but there will be a wedding ,you have to look the part.怎么翻译

I'll only be small tonight but there will be a wedding ,you have to look the part.怎么翻译
整体意思要结合语境.
look the part 是一英语习语.the part 是指戏子里面的角色.不能根据字面意思理解,it means appears suitable,
译文：我将会只在今晚变小,但是这儿将有个婚礼,你必须适合这个角色（大概就是适合这个婚礼气氛的意思）.

有一场婚礼，新郎（或新娘）不是我。

今夜有一场婚礼，我将仅是一个微不足道的外人，但是你必须扮演好你的角色。