Bac
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
As Ms. Smith has indicated on several previous occasions.
史密斯夫人在先前的几个场合已表示过我们对目前的印刷的安排很满意。
I played ping-pong this morning.
我今早在打乒乓球。
I will speak against anything I know to be wrong.
我会对所有我认为不对的事情直言不讳。