例句
Fold the paper into a triangle before cutting it.
先把纸折成三角形，再剪。
Engineers often use triangles in bridge designs because these shapes provide strength without requiring excessive material.
工程师常在桥梁设计中采用三角形，因为这种形状无需耗用过多材料就能提供强度。
常用搭配
- right-angled triangle｜直角三角形
- equilateral triangle｜等边三角形
- love triangle｜三角恋
词形与相关词
triangular (adj.)
用法提示
英式说right-angled triangle，美式常说right triangle。