Superseded90% confidenceFactTime unknown
领结(bow tie)分自系(self-tie)和预系(pre-tied)：黑领结(black tie)正式场合必须用自系款且为丝质，白领结(white tie)最高礼仪需搭配燕尾服；蝴蝶结形状选batwing(直线型)百搭，diamond point(菱角型)更休闲个性
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Long-term
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This knowledge claim has been superseded by newer content
正式黑领结（black tie）标准应为丝质（真丝缎面或罗缎），领结宽度控制在6-7cm，过宽显廉价、过窄不够正式Sources
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