例句
同义词
柯林斯高阶英汉双解学习词典释义
  • N-COUNT
    切线
    A tangent is a line that touches the edge of a curve or circle at one point, but does not cross it.
  • PHRASE
    突然偏离原来的思路;突然离题
    If someone goes off at a tangent, they start saying or doing something that is not directly connected with what they were saying or doing before.
    例句
    The conversation went off at a tangent. 交谈突然偏离了正题。
英汉词典释义
  • n.
    <数>正切;切线
    (铁路或道路的)直线区间
    突兀的转向;离题
    突然转移话题;突然改变思路
    One moment the professor is working hard on a problem in physics, the next he’s gone off at a tangent and he’s talking about bees. 前一分钟教授还在努力解答一道物理题,下一分钟他就突然开始讲起蜜蜂来。
  • adj.
    <数>正切的;相切的;切线的
    tangent circles 相切的圆
    离题的;背离原来途径的
    tangent remarks 离题的话
英英词典释义
  • Noun
    1. a straight line or plane that touches a curve or curved surface at a point but does not intersect it at that point
    2. ratio of the opposite to the adjacent side of a right-angled triangle
行业词典
  • 体育: 切线;
    数学: 正切;