Tangent vector
[计] 正切向量
🧩 词语组成解析
tangent
['tændʒənt]
n. <数>正切;突然转移话题;突兀的转向;（铁路或道路的）直线区间;
adj. <数>正切的;相切的;切线的;离题的;
tang接触+ent具有...性质的→相切的；接触的
🗣️ 情景例句
When I was asked to speak in English.
刚才当被要求说英语的时候。
A false tongue will hardly speak truth.
假舌不会吐真言。
Most of them were able to climb out in time. However four men were not quick enough to escape the flames.
大部分工人能够及时逃生。可是有4个工人来不及逃离火场。