释义 |
pi1/pai/n. 1 the sixteenth letter of the Greek alphabet (Π,π)希腊语字母表的第 16 个字母(Π,π) 2 (as 作π) the symbol of the ratio of the circumference of a circle to its diameter 圆周率 (approx. 近似值为 3.14159) [Greek: sense 2 from Greek periphereia ‘circumference’] |