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
Nobody. That's the problem.
没有人。这就是问题所在。
It's not my idea!
这主意不是我出的！
After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour.
比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。