mortar board
noun /ˈmɔːtə bɔːd/
/ˈmɔːrtər bɔːrd/
- enlarge imagea black hat with a stiff square top, worn by some university teachers and students at special ceremonies
学位帽,方顶帽(大学师生在一些隆重场合戴的黑色帽) compare capTopics Clothes and Fashionc2, Educationc2