青云翻译

First thought along the Mekong River from source to destination bike ride is his sister do?

First thought along the Mekong River from its source to the end of cycling as his sister?

First thought rides a bicycle along Mekong River from the source to the end point to travel is his elder sister?

first thought to the finish line along the Mekong cycling travel from the source of his sister?

First thought along the Mekong River from its source to the end of cycling as his sister?