buttonhole
noun [ C ] uk/ˈbʌt.ən.həʊl/ us/ˈbʌt̬.ən.hoʊl/
扣眼
a hole that a button is pushed through to fasten a shirt, coat, etc.
mainly UK（男子在婚礼等场合）戴在扣眼上的花
a flower that a man wears in the buttonhole of, or fastened to, his jacket on a special occasion such as a wedding
buttonhole
verb [ T ] uk/ˈbʌt.ən.həʊl/ us/ˈbʌt̬.ən.hoʊl/
拦住…让其听;引起…的注意
to stop someone and make them listen to you
Greg buttonholed me about sales figures when I came out of the meeting. 当我开完会出来时，格雷格拦住我跟我说了销售数据的事。