F-f cavity preselector
[电] 射频空腔预选器
🧩 词语组成解析
[计] 预选器, 预选程序
🗣️ 情景例句
I understand you used to be in the construction business,
听说你过去从事建筑业
She fears Tom will drop out of school.
她担心汤姆会休学。
Well, if you go to five reputable stock brokers and ask them what you should do with your money,
如果你去向5位有威望的股票经纪人咨询，询问你应该如何使用你的资金，