Sigma
[计] 求和\\n[医] σ(希腊文第十八个字母)
🗣️ 情景例句
for coming all this way from the city to talk to me about it.
从城里大老远赶来和我谈这件事。
Stop bossing me around!
别管闲事！
I beg your pardon?Who's climbing the tree?
你说什么？谁在爬树？