Acts
abbr. 声控遥测系统（Acoustic Control and Telemetry System）；声控制与遥测系统（Acoustic Control and Telemetry System）
🗣️ 情景例句
Thank you.
谢谢 。
Children enter primary school at the age of 7.
孩子们7岁进小学。
Make yourself at home.
请不要拘礼。