Deweylite
水蛇纹石
🗣️ 情景例句
My name is Ellen Stewart.
我叫Ellen Stewart。
You want me to shut him up, guy?
哥们，要不要我把它办掉？
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。