"Black tie" means that the men wear dinnerjackets and the women wear evening dresses.
“黑领结”则意味着男士们穿晚礼服戴领结，女士穿晚礼服。
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She is also understood to have rented dresses and jackets from Brett Lintner and Graeme Black - including a jacket she wore to the official G20 summit dinner.