Definition (服装)
To put on formal attire for a meal, typically in the evening.
（为了用餐）穿着正式服装
On that luxury cruise, passengers were expected to dress for dinner every evening.
在那次豪华游轮上，乘客每天晚上都必须为晚餐着正装。
In the past, people would typically dress for dinner before eating.
过去，人们通常在用餐前会为晚餐着正装。
She thought dressing for dinner was a bit old-fashioned, but she did it anyway.
她觉得为晚餐着正装有点过时，但她还是这么做了。