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
He will not see me stopping here
他不会看到我驻足此地
Every country has its customs.
乡有乡俗。
The woman first bought a few small articles.
这位妇女先是买了几样小商品。