Seroconversion
n. [生][医]血清转化
🗣️ 情景例句
Why do we need a swimming pool? Everyone in the family hates swimming!
我们需要游泳池做什么呢？家里人都讨厌游泳。
What's the quickest way to get there?
到那里的最快方法是什么？
The nomads who made these markings lived by hunting and fishing during the last Ice Age which began about 35,000 B.C.and ended about 10,000 B.C.
这些痕迹是游牧人留下的，他们生活在从公元前约35，000年到公元前10，000年的冰川期的末期，以狩猎、捕鱼为生。