Ndf
[医][=neutrophil diffraction factor]嗜中性粒（白）细胞衍生因子
🗣️ 情景例句
if people took the time to read.
只要人们肯花时间去阅读。
If it doesn't rain tomorrow, will you come to see me?
如果明天不下雨的话，你会来看我吗？
It also provides--and some student sociologist might care to base his thesis upon the phenomenon--an escape of another kind.
学社会学的大学生来露营是另一种形式的摆脱现实，他们的目的很可能是根据观察到的露营现象去写论文。