名詞 mortarboard:

1. a square board with a handle underneath; used by masons to hold or carry mortar
   同義詞：hawk
2. an academic cap with a flat square with a tassel on top

mor.tar.board

n.（名詞）
A square board with a handle used for holding and carrying masonry mortar.
砂漿托板：一種用來(lái)托起和盛放石造物漿泥的有柄四方板
An academic cap topped by a flat square.
學(xué)位帽：一種有平的四方頂學(xué)術(shù)帽