Seropositive
[医] 血清反应阳性的
🗣️ 情景例句
And tell me where you are and what's happened.
告诉我你在哪里，发生了什么事？
The first step is as good as half over.
第一步的成功等于事情的一半已完成。
NASA is now going to put the telescope right,
国家航天局准备纠正这一错误，