bur(also burr), / bɜ:(r); bə/ n (plant with a) prickly seed-case or flower-head that clings to hair or clothing 刺蒺藜（易附著於毛发或衣服上） (fig 比喻) She tried to get rid of him at the party but he stuck to her like a bur. 在宴会上她尽力摆脱他, 可他却像刺蒺藜一样钩住她不放.
牛津英汉双解词典