Hbcag
乙型肝炎核心抗原
🗣️ 情景例句
Either I'm at the hospital doing paperwork,
不是我在医院办公事，
He knows much who knows how to hold his tongue.
懂得缄默的是明白人。
Yes, I have.I was there in April.
是的，我去过。4月份我在那儿。