Nack
abbr. 否定应答（Negative Acknowledgement）
🗣️ 情景例句
How old are you, Gerald?
Gerald，你今年多大啦！
It's essential to choose the right means of transportation.
选择合适的运输方式很重要。
If you are interested, I will prepare a list of them.
如果您感兴趣的话，我可以列表让你参考。