Nack
abbr. 否定应答（Negative Acknowledgement）
🗣️ 情景例句
Don't worry.
别愁。
Do i need a reservation to go by ship?
我坐船去需要预订吗？
Don't tell me that all this is because of a photograph taken when I was twelve.
别跟我说，所有这一切都是因为我12岁时拍的一张照片。