Streptoplysin s
[医] 耐氧链球菌溶血素, 链球菌溶血素S
🧩 词语组成解析
[医] 链球菌溶血素
🗣️ 情景例句
We're supposed to be there
我们应当先到那儿
To have money is a fear, not to have it a grief.
有钱使人担心，没钱使人伤心。
Imagine a pen attached to the weight in such a way that its point rests upon a piece of paper on the floor.
假定把一支笔拴在重物上，笔尖落在地板上的一张纸上，