formula

/ˈfɔːr.mjə.lə/

名词

（婴儿）配方奶
惯例；配方；处方
There's no magic formula for success.
成功没有窍门儿。
分子式
We had to learn chemical formulas at school, but I can only remember H2O for water.
我们上学时都得学习化学分子式，但是我现在只记得得 H2O 代表的是水。