n.(白色或彩色的)粉笔，白垩
vt.用粉笔写(或画)

原形：chalk第三人称单数：chalks过去式：chalked过去分词：chalked现在分词：chalking

There is a piece of chalk in his hand.
他手里有一只粉笔。
They are as different as chalk and cheese .
他们完全不一样。
You may chalk it on the wall.
你可以用粉笔把它记在墙上。
The teacher wrote an equation on the blackboard with chalk.
老师用粉笔在黑板上写下了一个等式。
She drew a picture on the wall using white chalk.
她用白色粉笔在墙上画了一幅画。
Chalk is commonly used in traditional classrooms for writing.
粉笔在传统的教室里常用于写字。
The chalkboard eraser easily erased the mistakes made by the student.
粉笔擦轻易地擦掉了学生犯的错误。
After class, the students cleaned the chalk dust off their desks.
课后，学生们把桌上的粉笔灰擦干净。
A piece of chalk broke in half when she bent it.
她折断粉笔时，它断成了两截。
The old schoolhouse still had a chalkboard despite being converted to a community center.
尽管学校改成了社区中心，但还保留着一块黑板。
The children love to play with chalk outside during recess.
孩子们喜欢在课间休息时在户外玩粉笔。
The artist chose to work with colored chalk to create a vibrant mural.
艺术家选择用彩色粉笔创作出生动的壁画。
The teacher used a magnetic chalkboard to make the lessons more interactive.
老师使用磁性黑板使课堂更互动。