单词	right angled
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	stint stipend stipple stippled stippling stipulate stipulation stir stir-crazy stir-fried stir-fry stirring stirringly stirrup stirrup pants stitch stitchery stitching St. John's St. Kitts and Nevis St. Lawrence River, the St. Lawrence Seaway, the St. Louis St. Lucia stoat

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