Nac
abbr. 网络准入控制（Network Admission Control）；全国航空委员会（National Air Council）；负导纳变换器（Negative Admittance Converter）；北大西洋公约理事会（North Atlantic Council）
🗣️ 情景例句
He isn't likely to win.
他不可能赢。
It's certainly a big improvement over yestterday.
肯定比昨天大有好转。
What's the time?
几点了？