您要查找的是不是：
- Parallel lines converge at infinity. 平行线永不相交。
- A pair of horizontal parallel lines drawn across a shield. 盾形纹章上的横条纹画在盾形纹章上的两条水平的平行线
- He proved the existence of parallel lines. 他证明了平行线的存在性。
- A family of parallel lines cut the conic. 有一组平行线与圆锥曲线相交。
- Arrangement or position in a straight line or in parallel lines. 直线排列直线或平行线的排列或位置
- The parallel lines appear to diverge. 这些平行线像是岔开了。
- Will two parallel lines hand over to order? 两条平行线会有交点吗?
- PARALLEL LINES MEET AT INFINITY. 平行线永远不会相交。
- Parallel lines indicates a break in continuity. 平行线表示连续的中断。
- Parallel lines, by definition, never join. 根据定义，平行线永远不会相交。
- He drew a series of parallel lines. 他画了一组平行线。
- Parallel lines are lines that never join. 平行线是永不相交的线。
- He first drew a series of parallel lines. 他先画了好些平行的线。
- There is no converging point of two parallel lines. 两条平行线是不会有交汇点的。
- Our careers seem to run on parallel lines. 看来我们的事业是在齐头并进。
- A compound pen draws a compound line made up of parallel lines and spaces. 复合钢笔绘制由平行直线和空白区域组成的复合直线。
- Draw(a line) using a ruler,etc.mark parallel lines on(writing-paper,etc. 用尺等画(线);在(书写纸等)上画平行线
- Consider a family of parallel lines that cut the conic. 设有一组平行线与圆锥曲线相交。
- The Earth is round, but we walk actually on the parallel line which two cannot intersect cannot surmount. 地球是圆的，而我们却偏偏走在两条不能相交也不能跨越的平行线上。
- Parallel lines are, by definition, lines that never join. 按照定义，平行线即永不相交的线。
