Sigma
[计] 求和\\n[医] σ(希腊文第十八个字母)
🗣️ 情景例句
As far as I'm concerned, you can do what you like.
就我而言，你可以自便。
If I buy that car, I'll have to borrow some money.
如果我要买那辆车的话，我必须借一些钱。
None of the family apart from her father and my aunt have seen her since.
自从她离开家以后，家里人除了她父亲与我伯母外没有人见过她。