Alloantiserum
同种抗血清
🗣️ 情景例句
When you're ready to get off, remember to press the button near your seat.
当你要下车时，记得按你座位旁的按钮。
I'm afraid you will miss your train.
我怕你会错过火车。
OK. Thank you. Goodbye.
好的，谢谢您。再见！