Bản thân những ngón tay tóc vàng tuyệt đẹp nhanh đến mức cô ấy tạo ra một âm thanh bùng nổ

How fast do you have to move your fingers in order to create that insanely loud noise that only an aircraft can create? Well, apparently, as fast as this lassie. She has been training for this her entire life and she finally gets to show off the speed of her digits.