过去分词：pied 现在分词：piing 第三人称单数：pies 复数：pis
1.〈英〉同“pie”
2.【数】圆周率
3.希腊字母表的第十六字母
1.〈英俚〉虔诚的,有道德的,宗教性的
1.Same as pie
2.in mathematics, a number written as the symbol π that is used to show the relationship between the distance around a circle and the distance across it
piing