单词	right angle
释义	right angleˈright ˌangle noun [countable] math, geometry 1 an angle of 90°, like the angles inside the corners of a square2at right angles (to something) if two things are at right angles, they make a 90° angle where they touch:  The aisles intersect at right angles.—right angled adjective:  a right-angled triangle
随便看	Organization of African Unity, the Organization of American States, the organize organized organized crime organophosphate organ system orgasm orgasmic org chart orgiastic orgy Orient orient oriental orientate orientation -oriented orienteering orifice origami origin original originality original jurisdiction

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