Nack
abbr. 否定应答（Negative Acknowledgement）
🗣️ 情景例句
I'm sorry. For these large orders, we insist on payment by L C.
对不起。对于这样金额大的订单，我们坚持用信用证支付。
The remedy for injuries is not to remember them.
医治创伤的药方就是忘却创伤。
You've got lots of old buildings in your country.
你们国家有许多古老的建筑物。