当你用21除以4时，结果是一个实型数(一个带小数点的数)。

When you divide 21 by 4, the result is a real number (a number with a fraction).

youdao

当你用21除以4时，结果是一个实型数(一个带小数点的数)。

When you divide 21 by 4, the result is a real number (a number with a fraction).

youdao