Seroconversions
(seroconversion 的复数) n.[生][医]血清转化
🗣️ 情景例句
Financial security, that's what it's all about.
家庭财政状况无忧，这就够了。
No, thank you. But it was very kind of you to offer.
不用了，谢谢。承蒙您好意提出。
Both the police and the workmen were grateful to the student for this piece of advance information.
警察与工人都对那个学生事先通报情况表示感谢。