R-f preselectors
[电] 射频预选器
🗣️ 情景例句
I'm going to talk to Daddy about it right now.
我现在就去跟爸爸谈谈这件事。
Can you give me a wake-up call?
你能打电话叫醒我吗？
In this much-travelled world, there are still thousands of places which are inaccessible to tourists.
在这个旅游频繁的世界上，仍有成千上万个游人足迹未至的地方。