Nack
abbr. 否定应答（Negative Acknowledgement）
🗣️ 情景例句
My account number is ...
我户头号码是…
An empty purse frightens many friends.
曩中无分文，亲友不上门。
There was too much work for our computer to cope with.
我们的计算机要做的工作太多，简直应接不暇。