详细解释:n. 圆周率
【计】 处理器接口, 程序中断
【化】 磷脂酰肌醇
词型变化：
名词复数:pis动词过去式:pied,pied过去分词:pied,pied现在分词:piing,pieing第三人称单数:pies,pies英语解释：
名词 pi:
the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...someone who can be employed as a detective to collect information同义词：private detective, private eye, private investigator, operative, shamus, sherlock