Ndf
[医][=neutrophil diffraction factor]嗜中性粒（白）细胞衍生因子
🗣️ 情景例句
And very bright.
而且非常聪明。
What''s the cause of the delay?
什么原因延误？
The Karen had been sailing in a convoy to Russia when she was torpedoed by an enemy submarine.
“卡伦”号当年在为其他船只护航驶往俄国的途中突然遭到敌方潜水艇鱼雷的袭击。