一个三角形

triangle───n.三角（形）；三角关系；三角形之物；三人一组

acute triangle───[数]锐角三角形

a trifle───稍微；有点儿

atingle───adj.刺痛的；疼痛的；兴奋的

strangle───v.把……勒死；使哽咽，使窒息；掐死，扼死；抑制；妨碍，阻止

trangle───特兰格尔

triangled───三角形状的（triangle的变体）

When the building fell down, it made a triangle, and it saved us.───当建筑物倒塌时，它形成了一个三角形，救了我们。

The sum of all the angles of a triangle is 180 degrees.───一个三角形的所有角度之和是180度。

A triangle has three sides.───一个三角形有三条边。

If any of these points are connected to each other, then we have found a triangle of three mutual friends.───如果这些点相互连接，我们得到一个三角形，有三对人互为朋友。

The other point of such a triangle is known as a Trojan point, or a Lagrangian point, named after the mathematician who discovered them.───三角形的另一个顶点称为特洛伊点，或以发现它的数学家命名为拉格朗日点。

The sum of the lengths of any two sides of a triangle is greater than or equal to the length of the remaining side.───一个三角形的任两边长之和一定大于或等于第三边的长度

The same thing would happen if you were to treat in the same way a Triangle, or Square, or any other figure cut out of pasteboard.───如果你以同样的方法，用一个从硬纸板上剪下的三角形或正方形做实验，相同的事情会再次发生。

The flag is folded into a triangle, placed in an oak-and-glass case, then packed tightly in a box of cardboard and duct tape.───国旗是折叠成一个三角形，放置在一个橡树和玻璃外壳，然后装在一个盒子紧紧的纸板和胶带。

His eyes were large and lively, but the lids were caught up in the middle in a curious way, so that they formed a triangle.───他的眼睛大而活泼，但盖子被夹在中间在一个奇特的方式，使他们形成一个三角形。

A triangle is a shape with three sides.

He swept a triangle with his finger.

M12 forms a triangle with Lambda and Epsilon.

Fold over at right angles to form a triangle.

First cut the paper into a triangle.

The sum of all the angles of a triangle is 180 degrees.

A triangle is an efficient system of emotional checks and balances, allowing chil-dren to work out complicated feelings without volatile outbursts.

A triangle was chipped from one of its corners and a crack extended diagonally across its surface.

A mathematical proof about some property of a triangle does not, Gassendi thinks, give demonstrative understanding of its cause.