directed-line

基本解释

• 有向线段

同根派生

英汉例句

• She descends in a direct line from the country's first President.
  她是这个国家的首任总统的直系後裔。
• In computer graphics, a directed line segment.
  在计算机制图学中，一种有方向的线段。
• Direct line of descent;pedigree.
  世系世系；血统
• Direct line of descent; pedigree.
  世系世系；血统
• Please tell me the number for his direct line.
  请把他的直拨号码告诉我。