parallel lines中文什么意思

例句与用法

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1. He proved the existence of parallel lines .
   他证明了平行线的存在性。
2. Parallel lines indicates a break in continuity .
   平行线表示连续的中断。
3. A family of parallel lines cut the conic .
   有一组平行线与圆锥曲线相交。
4. Consider a family of parallel lines that cut the conic .
   设有一组平行线与圆锥曲线相交。
5. Jerusha went without comment, but with two parallel lines on her brow .
   杰鲁莎默默地去了，额上平添了两道皱纹。