dress shoe       
noun [ C usually plural ] mainly US uk/ˈdres ˌʃuː/ us/ˈdres ˌʃuː/
 正装鞋
a shoe that is suitable for wearing with formal clothes
  Students are required to wear a tie, blazer, khakis, and dress shoes. 要求学生们打领带,穿西装、卡其布裤和正装鞋。 
 a pair of dress shoes 一双正装鞋 
 - More examples
 - He appeared in court wearing a sky blue shirt, a tie, a black suit and dress shoes.
 - He ran straight from church to the jazz bar to play without even changing his dress shoes.
 - He has one pair of dress shoes.
 - The streets were full of parents with strollers, hotel maids in uniforms, Wall Street workers in dress shoes.
 - She wished she'd worn dress shoes, instead of pale green tennis shoes.