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
I want to buy shares in multi-national pharmaceutical company.
我想购买一家跨国医药公司的股票。
Don't you have my hat?
你没拿我的帽子吧？
You must have been driving at seventy miles an hour.
你刚才一定是以每小时70英里的速度开车。