Commination
n. 威吓
✅ 同义词
🗣️ 情景例句
Reading?
读书？
Why so mysterious?
干嘛神秘兮兮的？
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。