Nacks
(nack 的第三人称 -s形式) abbr. 否定应答（Negative Acknowledgement）
🗣️ 情景例句
Could human beings one day be built on a production line just like any other products?
人类是否有一天会如其它产品般在生产线上生产？
When you're learning to drive, having a good teacher makes all the difference.
初学驾驶有好的教师指导，差别很大。
I think I can, Kate.It must be Karen Marsh,the actress.
我想我认得出来，凯特。那一定是女演员卡。马会。