Tangent
[ 'tændʒənt ]
出国 Abroad
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;
💡 词根助记
tang接触+ent具有...性质的→相切的；接触的
📝 例句
tangent plane
切面
tangent remarks
扯得离题太远
The tangent may be used to find the direction.
这方向也可用正切求得。
For ?0 we naturally get a circle; for ?0 we obtain two tangent circles.
对?0我们当然得到一个圆；对?0得到两个相切的圆。
a straight line tangent to a curve
与曲线相切的直线
🌱 联想助记
【记】tang-tag接触,ent-形缀:和圆接触的线→切线,离圆心比较远→离题
✅ 同义词
📖 牛津释义
tangent
n
1 (geometry 几) straight line that touches the outside of a curve but does not cross it 切线. =>illus at circle 见circle插图.2 (abbr 缩写 tan) (mathematics 数) (in a right-angled triangle) ratio of the sides opposite and adjacent to a given angle 正切. Cf 参看 cosine, sine.
3 (idm 习语) go/fly off at a `tangent change suddenly from one line of thought, action, etc to another 突然改变思想、 行动等.
🔁 扩展释义
*['tændʒәnt]a. 接触的, 正切的, 离题的n. 切线, 正切【电】 正切相关词组: go off at a tangent
🏥 医学释义
切线，正切
📖 同为「GMAT」词汇
查看全部GMAT词汇 ›🗣️ 情景例句
and for meeting Harry and Michelle.
和认识了Harry和Michelle。
What will you do to help protect our environment from being seriously polluted?
你将为帮助保护我们的环境免遭到污染做些什么呢？
Where the cost of government is high, resources for development are correspondingly low.
凡是政府管理费用高的地方，用于发展国家经济的资金就会相应地减少。