Sigma test
[医] 西格马试验, Σ试验(检梅毒的絮凝反应)
🧩 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've been busy all day.
我今天一整天都非常忙。
My brother used to speak French to me all the time.
我的兄弟过去总是对我说法语。
Thank you, doctor, said Mrs. Brown.
“谢谢你，医生，”布朗夫人说。