名词
中文翻译：Unknown
同义词：
['pencil', 'chalk', 'eraser例句：1. She used a fenben to draw a picture on the blackboard.（她用粉笔在黑板上画了一幅画。）']
例句：
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1. She used a fenben to draw a picture on the blackboard.
她用粉笔在黑板上画了一幅画。
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2.The teacher asked the students to use fenbens to write their homework.
老师要求学生们使用粉笔写作业。
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3.After class, the teacher wiped off the fenbens with a cloth.
课后，老师用布擦掉了粉笔。