three parts三分threenum.三n.三；三个adj.三个的three thousand nine hundred and eighty four(=3984) 三千九百八十四three thousand four hundred and twenty five(=3425) 三千四百二十五three thousand four hundred and twenty four(=3424) 三千四百二十四three thousand five hundred and forty eight(=3548) 三千五百四十八three thousand three hundred and ninety six(=3396) 三千三百九十六three-step iterative sequence with errors具误差的三步迭代three thousand four hundred and twenty nine(=3429) 三千四百二十九three thousand four hundred and ninety four(=3494) 三千四百九十四three thousand five hundred and thirty nine(=3539) 三千五百三十九three-dimensional normal distribution law高斯三度空间正态分布定律