Perchloric
a. [化](含)高氯的
🗣️ 情景例句
The weather really sucks today.
今天的天气真差。
I wasn't aware of that.
我没有意识到。
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。