Polyerg
[医] 多能血清(单种血清而作用于异种抗原)
🗣️ 情景例句
This afternoon we're going to visit a friend in the hospital.
今天下午我们将去探望一位住院的朋友。
I'm done.
我不行了。
I meant to tell you yesterday, but you were not in your office.
我原想昨天告诉你的，但你没在办公室。