Rfo
abbr. radio frequency oscillator 无线电频率振荡器; request for factory order 要求工厂定购
🗣️ 情景例句
Put your cards on the table.
把牌都摊到桌面上。
I like to peel apples for my sweetheart.
我喜欢为自己的心上人削苹果皮。
Don't let this get you down.
不要为此灰心丧气。