壹、公式的英文是：
formula?n.公式；方程式；計算式；慣用語句；俗套話；配方；賽車等級；程序；制劑；化學分子式
universally applicable method (in a field)
二、例句：
1、用這壹公式很容易求出聲音波長。
This formula makes it easy to determine the wavelength of sounds.
2、這些復雜的數學公式把我搞得暈頭轉向。
Those complicated mathematical formulas make me dizzy.
3、他們的舞臺表演已經有點公式化了。
Their stage shows have become a little formularized.
4、這幾個公式涉及多次乘法運算。
These formulae involve a number of multiplications.