名词
中文翻译：数字线
同义词：
['numeral line', 'number line', 'numeric line']
例句：
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1. The teacher drew a number line on the board to help us count.
老师在黑板上画了一条数线，帮助我们计数。
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2. The students lined up along the number line for the parade.
学生们沿着数线排队参加游行。
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3. The engineer used a number line to measure the distance between the two points.
工程师使用一条数线来测量两点之间的距离。