chalk
Definition
A soft, white, porous limestone used for writing on blackboards or marking surfaces.
日本語 黒板に書くために使う、白くて軟らかくて孔の多い石灰岩。
Example
"The teacher wrote the lesson plan on the board with a piece of white chalk."
A soft, white, porous limestone used for writing on blackboards or marking surfaces.
日本語 黒板に書くために使う、白くて軟らかくて孔の多い石灰岩。
"The teacher wrote the lesson plan on the board with a piece of white chalk."