Aac
abbr. 自动振幅控制（automatic ampltiude control）
🗣️ 情景例句
There's a slight chance of some snow tomorrow.
明天也许会下点雪。
To roar
吠叫
like the cooling of a hot kettle or the wearing-out of a pair of shoes.
就像一壶热水迟早会凉下来，一双鞋渐渐会磨破一样。