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. + F5 C4 {- d* w! M9 Y& U0 q3 [2 A晚上的Semi-Formal - h* e( w0 h, Q8 R女士:小礼服, 长礼服不必 , S$ v9 G1 b* j. p+ X- _男士:深色西装, 领结,燕尾服不必。