/-{-{bǐngjī}-}-/, /pɪŋ³⁵ kei̯⁵⁵/, /biingji/, /bing2 gei1/, /bing2 gei1/, /bing2 géi1/, /bǐngji/、/ㄅㄧㄥˇ ㄐㄧ/
(有機化學) 一個烴基官能團，化學式C3H7