Radiospectrum
射频频谱
🗣️ 情景例句
I've been moonlighting for years.
我几年来一直兼职。
They're building a new house up the street from me.
我上面的那条街正在造一幢新房子。
The sun was shining and the sky was crystal clear.
阳光闪烁，天空湛蓝。