flatus英 [ˈfleɪtəs]美 [ˈfleɪtəs]n. 肠胃气; 屁医学牛津词典noun肠胃气;屁gas in the stomach or intestines英英释义nouna reflex that expels intestinal gas through the anusSynonym:fartfartingwindbreaking wind双语例句