Coeruleolactite
[化] 绿松石
🗣️ 情景例句
Know what? Aren't you going to tell me?
什么事？你不打算告诉我吗？
Lend your money and lose your friend.
赔了夫人又折兵。
This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
这种通讯联系要靠21厘米波段，即每秒1420兆周的精确无线电频率。