Plifier
电子束半导体线性低通放大管
🗣️ 情景例句
Oh, I remember this picture.
噢 我还记得这张照片。
While we were having breakfast,John was talking on the telephone.
当我们正在吃早餐时，约翰正在打电话。
Soon the errors will have multiplied to the ten-foot scale,
很快这种偏差会增加到10 英尺的范围，