Seroconverter
vi. 【生物学、医学】血清转化, 对疫苗产生抗体
🗣️ 情景例句
you've made a very strong impression
你已经留下了非常深刻的印象
It is not work that kills, but worry.
劳动不伤人，忧虑才伤人。
Lucy, are you hungry?
露茜，你饿了吗？