Leukocytopoiesis
白细胞生成
🗣️ 情景例句
Well, that would be OK
那倒没有什么关系
She is the most gracious hostess I have ever known.
她是我所见过的最和蔼的女主人。
I've been here for about two years. I've been here since 1993.
我到这儿大约有两年时间了。我自1993年就到这儿学习。