tangent
US /ˈtæn.dʒənt/
UK /ˈtæn.dʒənt/
名詞
1.
題外話, 離題
a completely different line of thought or action
範例:
•
The speaker went off on a tangent about his childhood.
演講者突然談起了他童年時期的題外話。
•
Let's not go off on a tangent; stick to the main point.
我們不要跑題，堅持主要觀點。
2.
切線
a straight line that touches a curve or curved surface at a single point, but does not cross it
範例:
•
The line AB is a tangent to the circle at point P.
線段AB是圓在點P處的切線。
•
In geometry, a tangent never intersects the curve more than once.
在幾何學中，切線與曲線的交點不會超過一個。
形容詞
1.
相切的
touching, but not intersecting, a curve or curved surface
範例:
•
The road runs tangent to the lake.
這條路與湖泊相切。
•
The satellite's orbit was tangent to the planet's atmosphere.
衛星的軌道與行星大氣層相切。
在 Lingoland 學習這個單詞