Seroconversion
n. [生][医]血清转化
🗣️ 情景例句
And my grandfather.
还有我祖父。
Saying and doing are two things.
说与做是两回事。
My name is Li Lei. I'm in Row 1, too. I'm Number 3.
我叫李磊。我也是第一排。我是3号。