pi is [number]
表示圆周率时，pi作为单数名词。
Pi is approximately 3.14.
圆周率约等于3.14。
希腊字母π；皮卡（印刷单位）；皮亚斯特（货币单位）；混杂的铅字；圆周率；[计] 处理器接口
The mathematical constant π (≈3.14159), equal to the ratio of a circle's circumference to its diameter.
The sixteenth letter of the Classical and Modern Greek alphabets and the seventeenth in Old Greek.
Metal type that has been spilled, mixed together, or disordered.
pica (conventionally, 12 points = 1 pica, 6 picas = 1 inch).
An irrational and transcendental constant representing the ratio of the circumference of a Euclidean circle to its diameter; approximately 3.14159265.
Piaster.
To find the circumference of a circle, multiply the diameter by pi.
要计算圆的周长，用直径乘以圆周率。
用法提示：pi在这里用作名词，表示圆周率。
The value of pi is approximately 3.14159.
圆周率的值大约是3.14159。
用法提示：pi作为名词，指圆周率这个常数。
We learned how to use pi in our geometry class today.
今天我们几何课上学习了如何使用圆周率。
用法提示：pi作为名词，指数学常数圆周率。
表示圆周率时，pi作为单数名词。
Pi is approximately 3.14.
圆周率约等于3.14。
The letter pi is the 16th letter of the Greek alphabet.
字母pi是希腊字母表的第16个字母。
作为符号，读音为pi，常直接使用
grammar · medium
易错句子The value of pie is approximately 3.14.
正确表达The value of pi is approximately 3.14.
将数学常数π误拼为pie（馅饼），因发音相同而混淆拼写。
grammar · medium
易错句子We need to calculate the pis of different circles.
正确表达We need to calculate the pi of different circles.
误认为圆周率π是可数名词而使用复数形式，实际上作为数学常数，π通常不可数。
圆周率的值
The value of pi is approximately 3.14159.
圆周率的值大约是3.14159。
计算圆周率
We can calculate pi using various mathematical methods.
我们可以使用各种数学方法计算圆周率。
圆周率的位数
The digits of pi go on infinitely without repeating.
圆周率的位数无限延伸且不重复。
近似计算圆周率
Ancient mathematicians attempted to approximate pi using polygons.
古代数学家尝试用多边形近似计算圆周率。
圆周率π是圆的周长与直径之比
π用于计算圆的周长
π定义为周长与直径的比值
π是一个重要的数学常数
π在几何学中频繁出现
π 正好等于三！
This line from The Simpsons is a humorous take on mathematical approximations, often used to mock over-simplification.
这句来自《辛普森一家》的台词幽默地调侃了数学近似值，常被用来讽刺过度简化。
我的名字叫派。
This is a famous line from the film 'Life of Pi', where the protagonist introduces himself, blending a mathematical constant with his identity.
这是电影《少年派的奇幻漂流》中的著名台词，主角自我介绍时将自己的名字与数学常数π联系起来。
Dictionary facts from ECDICT, WIKTIONARY.