1、Your BMI is your weight divided by the square of your height, and multiplied by 732.
你的體重指數(shù)是用你的重量除以高度的平方，然后再乘上732。

2、It is defined as a person's weight in kilograms divided by the square of his height in meters.
其定義為按公斤計算的體重除以按米計算的身高的平方(kg/m2).

3、Tell me by the square why it is so.
請準(zhǔn)確地告訴我，為什么會這樣。

by the square翻譯