Seronegative
[医] 血清反应阴性的
🗣️ 情景例句
All my bags are checked in. I guess I'm all set to go.
我的行李都检查完了，看来我可以走了。
His job is his whole life.
工作就是它的生命。
Here were not carvings in the rock but paintings.
这里岩石上不是石刻而是绘画。