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Chalk
What is "chalk"?
Chalk is a soft, white or colored substance made from calcium carbonate, commonly used for writing or drawing on surfaces like blackboards or sidewalks. It comes in stick form and can be easily erased or washed away, making it ideal for temporary markings.
to chalk
例子
With chalk in hand, the teacher described the outline of the human body on the blackboard.
The artist used colored chalk to create a mural on the sidewalk.
The teacher used a chalk marker to write announcements on the classroom chalkboard.
The chalk squeaked on the blackboard as the teacher wrote.
The sidewalk chalk drawings usually wash off after a good rain.
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