Plifier
电子束半导体线性低通放大管
🗣️ 情景例句
You can't believe all these ads.
你不能全信广告。
Don't speak all you know, but know all you speak.
不要尽言所知，而要尽知所言。
After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour.
比赛结束后，坎贝尔非常失望地得知他的平均时速是299英里。