Sigma reaction
[医] 西格马反应, δ反应(梅毒的絮凝反应)
🧩 词语组成解析
[计] 求和\\n[医] σ(希腊文第十八个字母)
🗣️ 情景例句
You don't need to do that.
你不用那么做的。
He has interviewed a lot of people for the job.
他已和许多应征这份工作的人面谈过了。
Yes, I know it's bad, but I need to do some shopping.
是的，我知道天不好，但我得买点东西。