说明：这个软件能够很好的模拟计算器的各种功能涵盖一些高级功能。

This software can simulate various features of the calculator cover some advanced features.

youdao

说明：这个软件能够很好的模拟计算器的各种功能涵盖一些高级功能。

This software can simulate various features of the calculator cover some advanced features.

youdao