Seronegative
[医] 血清反应阴性的
🗣️ 情景例句
We'll take care of it.
我们去照顾。
How much do I owe you?
我欠你多少钱？
So far, no man has travelled farther than the moon, but spaceships without people have reach other parts of the universe.
到目前为止，尚未有人到过比月球更远的地方，但无人驾驶的宇宙飞船已到达过宇宙的其它地方。