He used a computer, but you can also calculate pi at home with some needles and a sheet of lined paper.

当然，贝拉德要求助于电脑，不过你也可以用最简单的办法在自家客厅计算圆周率，所用材料只是几根针和一张横格纸。

youdao

He used a computer, but you can also calculate pi at home with some needles and a sheet of lined paper.

当然，贝拉德要求助于电脑，不过你也可以用最简单的办法在自家客厅计算圆周率，所用材料只是几根针和一张横格纸。

youdao