Seroconverter
vi. 【生物學、醫(yī)學】血清轉化, 對疫苗產生抗體
??? 情景例句
you've made a very strong impression
你已經留下了非常深刻的印象
It is not work that kills, but worry.
勞動不傷人，憂慮才傷人。
Lucy, are you hungry?
露茜，你餓了嗎？