S.r.
[医] 沉降速度, 沉降率, 西格马反应, σ反应(检梅毒的絮凝反应)
🗣️ 情景例句
I've got to keep my nose to the grindstone to support my family.
我拼命工作养家。
A fool always rushes to the fore.
傻瓜总爱强出头。
My grandpa died of hunger in the old days.
我爷爷在旧社会死于饥饿。