Euler's formula
[計] 歐拉公式
?? 詞語組成解析
formula
['f?:mjul?]
n. 公式，準則;客套話;方案;嬰兒食品;
??? 情景例句
Having their origins in China, chopsticks are used in many Asian countries.
筷子起源于中國，現在很多的亞洲國家都使用它。
I know the boy whose father is a dentist.
我知道那個男孩的父親是牙醫。
How kind! You were lucky.
她多好啊！你很幸運。