单词	pi
释义	English American pinoun uk/paɪ/us/paɪ/symbol Π, π [ U ] mathematics, science the number (approximately 3.14) used to calculate the size of circles [ C or U ] language the 16th letter of the Greek alphabet Thesaurus: synonyms and related words Mathematical symbols addition sign degree division sign equal sign expression foot minus multiplication sign placeholder plus point subtraction sign x y You can also find related words, phrases, and synonyms in the topics: Letters of alphabets pinoun [ U ] /pɑɪ/symbol π geometry a number that is the ratio (= comparison) of the distance around a circle to the distance across the circle, equal to about 3.14159
随便看	act the fool, martyr act the fool, martyr, etc. act up act upon sth act your age act your age act your age! act/do sth on your own responsibility act/play the fool act/play the goat act/play/star opposite sb acting acting chairman, manager acting chairman, manager, etc. action action figure action group action item action item action learning action orientated action oriented action packed action plan action point