Maca
n. (Maca)人名；(捷)马察；(罗)马卡\\nabbr. 海上空中交通管制局（Maritime Air Control Authority）；避免冲突的多路访问（multiple access with collision avoidance）
🗣️ 情景例句
She sells sea shells on the shining seashore.
她在亮晶晶的海滩上卖贝壳。
Please think nothing of it.
别挂在心上。
it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
提出把它作为星际间唯一可辨认的广播频率就为期不远了。