- 直线: straight line steep; sharp
- 的: 4次方是 The fourth power of 2 i ...
- 直角: right angle
- 直角的: orthogonal; orthographic; perpendicular; rectangular, right-angled; right angled; square
- 直线的: collinear; direct; orthographic; rectilineal; rectilinear; right lined; straight lined
关注微信公众号：chachacidian，回复:直线的，直角的，即可在微信中查询翻译
