1
a triangle of [n]
表示某物呈三角形
a triangle of land
一块三角形的地
三角形
先理解核心含义，再看它在真实句子里的用法。
三角形
A flat shape with three straight sides and three angles.
a triangle of land
一块三角形的地
有三条边和三个角的多边形
A polygon with three sides and three angles.
三边形
a three-sided polygon
将金属棒弯成三角形(一角开口)的打击乐器,用绳悬挂,以金属棒敲击发声
A percussion instrument made by forming a metal rod into a triangular shape which is open at one angle. It is suspended from a string and hit with a metal bar to make a resonant sound.
近似三角形的东西
something approximating the shape of a triangle
In geometry class, we learned that the sum of the angles inside a triangle is always 180 degrees.
在几何课上，我们学到了三角形内角和总是180度。
AI contextual example
She drew a large triangle on the whiteboard to demonstrate the problem.
她在白板上画了一个大三角形来演示这道题。
AI contextual example
The children counted all the triangles they could spot in the pattern.
孩子们数出了他们在图案中能找到的所有三角形。
AI contextual example
the coastline of Chile and Argentina and Brazil forms two legs of a triangle
智利、阿根廷和巴西的海岸线构成了一个三角形的两条边。
WordNet
表示某物呈三角形
a triangle of land
一块三角形的地
表示三角形的属性
the area of a triangle
三角形的面积
表示排列成三角形
They stood in a triangle.
他们站成一个三角形。
Not this
I see triangle on the table.
Use this
I see a triangle on the table.
三角形是可数名词，前面需要加冠词 a，表示一个三角形。
Not this
This is a triangle table.
Use this
This is a triangular table.
描述桌子形状时应用形容词 triangular，而非名词 triangle。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
直角三角形
A right triangle has one 90-degree angle.
直角三角形有一个90度的角。
等腰三角形
An isosceles triangle has two equal sides.
等腰三角形有两条相等的边。
等边三角形
An equilateral triangle has three equal sides.
等边三角形有三条相等的边。
三角形形状
The road sign has a triangle shape.
这个路标是三角形形状。
三角形面积
The area of a triangle is half the base times height.
三角形的面积是底乘高的一半。
三角不等式
The triangle inequality states that the sum of any two sides is greater than the third.
三角不等式指出任意两边之和大于第三边。
三角恋
The novel revolves around a love triangle between three friends.
这部小说围绕三个朋友之间的三角恋展开。
三角关系（常指爱情）
Their marriage was complicated by an eternal triangle with a close friend.
他们的婚姻因与一位密友的三角关系而变得复杂。
金三角（东南亚鸦片产区）
The Golden Triangle is notorious for its opium production.
金三角因其鸦片生产而臭名昭著。
Use triangle naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
tri 是三，angle 是角，合起来就是三角形。
语域：neutral 常见场景：geometry、everyday objects 通常用于几何学术语和日常描述物体的形状。
注意：triangle为可数名词，复数加-s。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.