Hbcag
乙型肝炎核心抗原
🗣️ 情景例句
Nothing to worry about.
没有什么好担心的。
I think exactly the same way.
我完全同意。
After taking off, we were flying low over the city and slowly gaining height,
起飞之后，我们在城市上空低低地飞行，然后慢慢爬高。