Electrolemma
电膜
🗣️ 情景例句
We'll be heading back late in the afternoon.
我们会在黄昏时打道回府。
It's been a bad day.
今天糟透了。
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。