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noun [ C ] uk/ˈʃev.rən/ /ˈʃev.rɒn/ us/ˈʃev.rən/
（尤指警服或军装袖子上表示等级的）V形图案；（英国用作路标、表示急转弯的）V形标记
a shape like a V or an upside down V, used especially on the sleeve of a police or military uniform to show the wearer's rank, or on road signs in Britain to show a severe bend in the road