Rfa
abbr. request for applications 应用要求; radio frequency authorization 无线电频率授权; radio frequency attenuator 无线电频率衰减器; request further airways 要求更远的航线
🗣️ 情景例句
One week after I have submitted my resignation paper.
在我提交辞职信一星期后吧！
In doing we learn.
经一事，长一智。
and an American-made dialysis machine needs the EU's okay before is hits the market in Europe.
而美国制造的透析仪也要得到欧盟的首肯才能进入欧洲市场。