健康恋爱关系

40-42 37-39 34-36 31-33 28-30 25-27 22-24 19-21 16-18 13-15 10-12 7-9 1-3 4-6 7-9 10-12 13-15 16-18 19-21 22-24 25-27 28-30 31-33 34-36 37-39 40-42