Nicocortonide
烟巴松
🗣️ 情景例句
Try to think in English whenever possible.
尽可能用英文思维。
When will he come to see you?
他什么时候来看你？
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。