1, "Bears Return to Earth" has not only funny plots, but also nervous and even worrying plots, so it is not surprising that the whole movie has ups and downs. In the film, the dog plays the erhu quite professionally, and the track he plays is called "Broken Flowers and Broken Feelings".
2. I think who plays the erhu better, Xiong Er or two dog, for the details that are not found in Bears. In fact, besides two dog, Xiong Er has also played this track.