R-f preselectors
[电] 射频预选器
🗣️ 情景例句
What's the best place for souvenir hunting?
在哪儿可以买到最好的纪念品？
Hanve given him anything?
你给他东西吗？
But which language is the most widely spoken in the world?
但是世界上哪种语言运用最广泛？