英语词汇mortarboard怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	mortarboard
释义	mor.tar.board HmC:7tE7bC:d, $5mC:r7tL7bC:rd n [C] Aus trench.er 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 学士帽
随便看	ulcer ulcerated ulceration ulcerous ulterior ultimate ultimate ultimately ultimatum ultra- ultramarine ultrasonic ultrasound ultraviolet um umbilical cord umbrage umbrella umlaut umpire umpire umpteen umpteenth 'un UN

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