Seroconversions
(seroconversion 的复数) n.[生][医]血清转化
🗣️ 情景例句
I'm happy to meet you.
很高兴见到你。
The restaurant is around the corner from the hotal.
那餐厅在饭店转角附近。
Later, we ate our picnic under some trees.
后来，我们在树下吃野餐。