It's 15 by 15 meters 中by的意思是什么?

问题描述:

It's 15 by 15 meters 中by的意思是什么?

by 乘
是15乘15米.multiplied by 和 by 是有区别吗?有
multiplied by 乘以

如:5 multiplied by 5 is 25.