Nack
abbr. 否定应答（Negative Acknowledgement）
🗣️ 情景例句
What kind of advice are you looking for?
希望能得到什么建议？
I can't imagine that anyone cares about what I do.
我想不出谁会关心我的所做所为。
He's fine, thanks.How's Emma?
他很好，谢谢。埃玛好吗？