英 [ˈmɔːtəˌbɔːd] 美 [ˈmɔːrtərbɔːrd]
n. 学位帽；灰泥板
mortarboard //
可数名词 A mortarboard is a stiff, black cap which has a flat, square top with a bunch of threads attached to it. In the United States, mortarboards are worn by students at graduation ceremonies at high schools, colleges, and universities. 学位帽
a square board with a handle underneath; used by masons to hold or carry mortar
同义词： hawk
an academic cap with a flat square with a tassel on top
灰板
... mortarwalling灰浆砌筑 mortarboard灰板 mortice榫槽 ...
...到不少颜色说法）： 【Cap 帽子】 没有Headwear就不能叫做一套完整的学位服。不同学位的帽子也是不一样的。四方帽（Mortarboard）通常代表学士学位或硕士学位，而便帽（Tam）通常代表学士以上的更高学位——硕士或博士。
学位帽；灰泥板
A picture of a grinning, freckled teenage boy was on the right. On the left side was a shot of a young woman in a graduation gown and mortarboard.
照片中右边是一个长着雀斑的十多岁男孩正咧嘴笑着，左边是一个穿着学士服带着学士帽的年轻女子。
Afterward, you spot her walking alone across the lawn of Old Queens, carrying a mortarboard she picked up.