滚雪球效益简介：As for why he went to class today, he just went to the classroom to have a look because the final exam was coming soon. However, he did not expect that trouble would come to his door when he went there.
As for why he went to class today, he just went to the classroom to have a look because the final exam was coming soon. However, he did not expect that trouble would come to his door when he went there.
