JiaFa electronic factory 嘉发电子厂
jiafa jiehelu 加法结合律
jiafa jiaohuanlu 加法交换律
Fan Jiafa, the father of "mini Jack Ma, " had his right leg amputated as a young man after being bitten by a viper.
“小马云”的父亲范佳发（音）年轻时由于被毒蛇咬伤，截去了右腿。
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