Heterovaccine
异种菌苗
🗣️ 情景例句
She's coming over this morning to help me with my math.
她今天早晨要过来帮我补习数学。
New lords, new laws.
新官新法。
Yes, I do. I have two, a son and a daughter.
有两个，一个儿子，一个女儿。