Bacs
(bac 的复数) abbr. 二进制模拟转换（Binary-Analog Conversion）；（美国）波音飞机公司（Boeing Airplane Company）；英国飞机公司（British Aircraft Corporation）
🗣️ 情景例句
I'd like to thank Harvey Carlson
我非常感谢Harvey Carlson
No song, no supper.
不劳无获。
It was my first flight. I was nervous when the plane took off.
我第一次坐飞机，起飞时我有点紧张。