常見(jiàn)例句One line cuts another at right angles. 一條線與另一條線成直角相交。An angle in a semicircle is a right angle. 半圓所對(duì)的圓周角是直角。A right triangle has a right angle. 直角三角形有一個(gè)角是直角。It forms a right angle with the equator. 它與赤道成直角。This is a right angle; that is a sharp angle. 這是一個(gè)直角,那是一個(gè)銳角。An angle of 90°is called a right angle. 九十度角稱為直角。 返回 non-right-angle