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
Then, take this afternoon off.
那么，今天下午就休息一下吧。
The ground around here is stony and not very good for farming.
在这里附近的地多石做为耕作不很好的。
becomes so worn and unreliable that it eventually is not worth mending.
磨损太厉害，老得一点儿也不准了，最终会不值得修理了。