Aac
abbr. 自动振幅控制（automatic ampltiude control）
🗣️ 情景例句
Robbie! Who is it? Robbie
是谁呀？
When will the contract be ready?
合同何时准备好？
Since then, they have been trying to find out how the fire began.
从那时起，他们一直试图找出起火的原因。