| 释义 |
mortarboard
UK ['mɔ:.tə.bɔ:d] US ['mɔ:r.tˌɚ.bɔ:rd] noun countable (Australian trencher)
■a black hat with a square flat top, worn on formal occasions by some teachers and students at college or university, and in the past by some school teachers （黑色的）方顶帽，学位帽 |