Seronegativity
血清阴性
🗣️ 情景例句
Our team beat yours last match.
上一场比赛中，我们队打败了你们。
I've been part of this project since its beginning.
从一开始我就参与这个计划。
When we later walked down the main street of the villager, we were followed by a silent procession of children.
后来，我们在村里的主要街道上行走的时候，一队默不作声的孩子跟在我们后头。