单词 | pi |
释义 | pipi /paɪ/ noun [uncountable] 1math, geometry a number, about 3.1416, that is represented by the Greek letter (π) and is equal to the distance around a circle divided by its width. Pi multiplied by the length of the radius (=half the distance across a circle) multiplied by the radius again (=πr²) gives the area of a circle.2eng. lang. arts the 16th letter of the Greek alphabet |
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