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1·In math class, we learned about the properties of parallel lines.

在数学课上，我们学习了 平行线 的性质。youdao

2·There are two perfect parallel lines drawn on this paper.

这张纸上画着两条完美的 平行线。youdao

3·The tracks designed by the engineer are parallel lines to ensure the train runs smoothly.

工程师设计的轨道是 平行线，确保火车平稳行驶。youdao

4·The artist skillfully used parallel lines to create a unique pattern.

艺术家巧妙地用 平行线 创造出了独特的图案。youdao

5·The running tracks on the playground are parallel lines, which are convenient for athletes to compete.

操场上的跑道是 平行线，方便运动员比赛。youdao

6·The window frames of the building form neat parallel lines.

建筑的窗户框架形成了整齐的 平行线。youdao

7·The latitude and longitude lines on the map are parallel lines that help us locate places.

地图上的经纬线是 平行线，帮助我们定位。youdao

8·The carpenter uses parallel lines to ensure the wooden boards are cut neatly.

木工师傅用 平行线 确保木板切割得整齐。youdao

9·The fence in the garden is made up of parallel lines, which is both beautiful and practical.

花园里的栅栏由 平行线 组成，美观又实用。youdao

10·The binding lines of the book look like parallel lines.

书本的装订线看起来像 平行线。youdao