Ngf
abbr. 神经生长因子（Nerve Growth Factor）
🗣️ 情景例句
Examinations are at hand.
考试在即。
I'm free tomorrow.
我明天有空。
A short while ago, my sister helped me to carry one of my old bookcases up the stairs.
几分钟前，我妹妹帮我把一个旧书橱抬上了楼。