Vaccin
[医] 菌苗, 疫苗
🗣️ 情景例句
Sir, I thought this was an emergency.
先生，我想这是一位急病患者。
He is unworthy to live who lives only for himself.
为己而生，生而可耻。
for she had sixteen watertight compartments.
因为船由16个密封舱组成，