Ngf
abbr. 神经生长因子（Nerve Growth Factor）
🗣️ 情景例句
you know,
你知道的，
Pardon me.
请原谅。
A gust of wind swept the bed off the roof and sent it crashing into the courtyard below.
一阵大风把床从屋顶上刮了下来，把它摔碎在下面的院子里。