Cec
abbr. 中国电子信息产业集团公司（China Electronics Corporation）；消费电子控制（Consumer Electronics Control）；阳离子交换能力（Cation Exchange Capacity）；欧洲协调委员会（Co-ordinating European Council）
🗣️ 情景例句
Yes, they do.
是的 ，花儿好香。
I've changed my mind.
我已经改变主意。
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。