🗣️ 情景例句
I hope that he will succeed.
我希望他会成功。
You can receive our program at short wave 37.5 MH.
你可在短波37.5赫兹上收到我们的节目。
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。