Naf
abbr. negative acting factor 负作用因子; nonappropriated funds 非拨入经费
🗣️ 情景例句
I really have to rush.
我真的得赶快走了。
There is no time like the present.
机不可失，时不再来。
My dentist had just pulled out one of my teeth and had told me to rest for a while.
我的牙科医生刚刚给我拔掉了一颗牙，叫我休息一会儿。