Seroconversion
n. [生][医]血清转化
🗣️ 情景例句
Hello.
哈啰 。
I meet the boy whose aunt is a clerk.
我遇到那个男孩的姑妈是店员。
I didn't have any supper, except a piece of bread, because I didn't feel very well.
晚餐我只吃了一片面包，别的什么也没吃，因为我觉得不舒服。