Seronegativity
血清阴性
🗣️ 情景例句
Can you tell me how to get to the railroad station?
你能告诉我怎样去火车站吗？
Me too. I was hoping we could finish copying this report today.
我也希望如此，我本来希望今天我们能复印完这份报告。
As usual, the police will have a difficult time.
同往常一样，警察的日子将不好过，