名词
中文翻译：直尺同义词
同义词：
['ruler', 'straightedge']
例句：
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1. He used a ruler to measure the length of the wall.
他用直尺测量了墙的长度。
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2. The teacher asked the students to use rulers to draw their geometric shapes.
老师要求学生们使用直尺来画几何图形。
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3. The carpenter used a ruler to mark the corners of the table.
木匠用直尺标记桌子的角落。