Chance/(偶然性) -> #2of3 Intermediate/(中级) -> Organising Sounds/(组织声音) -> Learn/(学习)

Chance/(偶然性) -> Practise/(实践) -> Step 2 High School/(第二步高中) -> Years Group/(年级群)

Chance/(偶然性) -> Organising Sounds/(组织声音) -> #2of3 Intermediate/(中级) -> #[Tier 6] Pedagogical Aspects for Children/([第六]教育层为儿童) -> Users Group/(用户群)