Nack
abbr. 否定应答（Negative Acknowledgement）
🗣️ 情景例句
Hello, May I speak to Miss Li, please?
喂。我可以请李小姐接电话吗？
I wrote novels yesterday.
我昨天在写小说。
Jim, could you help us, please?
吉姆，你能帮我们吗？