dotted crotchet dotted note quarter note
四分音符;
audio frequency amplifier note amplifier note magnifier phono amplifier tone amplifier voice am
音频放大器;
audio frequency amplifier note amplifier note magnifier phono amplifier tone amplifier voice am
音频放大器;
audio frequency amplifier note amplifier note magnifier phono amplifier tone amplifier voice am
音频放大器;
audio frequency amplifier note amplifier note magnifier phono amplifier tone amplifier voice am
音频放大器;