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Dyma Fi: Poeni
1000 o bobl ifanc, 1 holiadur. Sut wyt ti'n cysgu? Beth sy'n dy boeni? Pa mor iach wyt ti? 1000 teenagers, 1 questionnaire. How well do you sleep? What worries you? How healthy are you?
Darllediad diwethaf
Maw 17 Tach 2015
19:55
Darllediad
- Maw 17 Tach 2015 19:55