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vi. 【生物学、医学】血清转化, 对疫苗产生抗体
🗣️ 情景例句
That means fresh eggs and fresh milk.
也就是说会有新鲜的鸡蛋和牛奶。
Has everybody got a sheet?
每个人都拿到材料了吗？
I'm very sorry, but I can't come.
但很抱歉，我不能来。