Radioamplifier
n. 高频放大器
🗣️ 情景例句
I looked all over the house to find it.
我找遍了整间屋子才找到它。
Try your friend ere you trust him.
对朋友要先考验，后信任。
there is no evidence that the total amount of activity is any less.
但没有迹象表明，其活动总量有任何减少。