笔记:mortarboard n. 学士帽这个词也是学士帽的意思,是个更加准确的表达。Mortarboard also means a black hat with a stiff square top, worn by some university teachers and students at special ceremonies.学士帽是一种黑色的方形硬帽,一些大学老师和学生在特殊仪式上会戴这种帽子。获取节目完整音频、笔记和片尾的歌曲名,请关注微信公众号「早安英文」,回复“笔记”即可。更多有意思的英语干货等着你!