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
we love having you here.
我们喜欢你们住这里 。
The fool doesn't suspect a thing.
傻人不疑心什么。
Many strange new means of transport have been developed in our century,
本世纪已研制出许多新奇的交通工具，