名词
中文翻译：圆珠笔
同义词：
['ballpoint', 'ballpoint pen', 'ballpoint marker例句：1. She wrote her name on the whiteboard with a ball-point pen.（她用圆珠笔在白板上写下了自己的名字。）']
例句：
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1. She wrote her name on the whiteboard with a ball-point pen.
她用圆珠笔在白板上写下了自己的名字。
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2. The teacher asked the students to write their names in the book with ball-point pens.
老师要求学生们用圆珠笔在书上写下自己的名字。
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3. I need a ball-point pen for my writing project.
我需要一支圆珠笔来写我的项目。