Technicon
[音]弹奏技巧练习器
🗣️ 情景例句
I continued to teach piano lessons at home.
我继续在家教钢琴。
Stereo set playing a record
放着唱片的立体声唱机
In vain they rush frantically round from place to place,
他们到处狂奔乱跑，