Proteantigen
蛋白(质)抗原
🗣️ 情景例句
That's all for now. How much do I owe you?
目前这些就够了，我要付你多少钱？
A true jest is no jest.
真正的笑话不是笑话。
Custom has not commonly been regarded as a subject of any great moment.
风俗一般未被认为是什么重要的课题。