R-f generator
[电] 射频产生器
🧩 词语组成解析
🗣️ 情景例句
when she was a child.
在她小时候。
How long are you going to stay here?
你要在这里停留多久？
At the far end of the lake, they came to huge piles of rubble which had been washed up by the water.
在湖的尽头，他们见到一大堆一大堆由湖水冲刷上岸的碎石。