Alexofixin
[医] 补体结合抗原
🗣️ 情景例句
Don't be so grumpy.
别总这么爱抱怨。
A man of gladness seldom falls into madness.
生性乐天的人极少会变成疯子。
The house was completed five months ago.
是在5个月以前竣工的。