Aac
abbr. 自动振幅控制（automatic ampltiude control）
🗣️ 情景例句
Actually, it's the only newspaper.
事实上， 它是唯一的报纸。
The market is declining, we recommend your immediate acceptance.
市场在萎缩，我们建议你方马上接受。
Imagine a railway station, a bus company or a cinema, which many people need to ring to find out the times of trains, buses or films.
想一想，有许多人需要打电话到火车站、汽车公司或电影院，以便弄清火车、汽车的起始时间或电影放映的时间吧。