Ndf
[医][=neutrophil diffraction factor]嗜中性粒（白）细胞衍生因子
🗣️ 情景例句
He's going up the ladder pretty quickly.
他真是平步青云。
A little learning is a dangerous thing.
浅学误人。
We had to queue for hours to get in and there must have been several hundred people present just before the show began.
我们不得不排了好几个小时才进得场去。在演出开始前场内肯定已有好几百人了。