Semi-Formal or After Five means that tuxes are not required, nor are long dresses. An evening wedding (after 6 PM) would still dictate dark suits for him, and a cocktail dress for her. Daytime semi-formal events mean a suit for him and an appropriate short dress or dressy suit for her. 4 d# m# Q; `$ H! o* d# s/ C& g晚上的Semi-Formal ! [6 }2 {: l$ z8 _$ g3 d/ r4 j女士:小礼服, 长礼服不必 & m/ {2 k3 K/ v' X, n男士:深色西装, 领结,燕尾服不必。