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词汇 pi
释义

pi

noun
/paɪ/
/paɪ/
  1. (geometry几何) the symbol π used to show the ratio of the circumference of (= distance around) a circle to its diameter (= distance across), that is 3.14159…圆周率
  2. the 16th letter of the Greek alphabet (Π, π)希腊字母表的第 16 个字母
  3. 词源Greek.
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