Black tie

n.

男子礼服的黑色领结，男子的半正式礼服；

Black Tie | I Wear a Kilt
Black tie and tales
No room left at Black Tie & Boots ball
Black Tie
BLACK tie
Black Tie
Men's Style: Bored by Your Old Black Tie? Hang Up the DJ ; Just Because It Says `Black Tie' on the Invitation, You Don't Have to Loo...
Selection based on the size of the black tie of the great tit may be reversed in urban habitats
Black-tie dress code: two new species of the genus Toxomerus (Diptera, Syrphidae)
Ethnic Ties and Entrepreneurship: Comment on Black Ties Only