youthful in czech youthful in german youthful in danish youthful in spanish youthful in french youthful in italian youthful in norwegian youthful in swedish youthful in bulgarian youthful in belarusian youthful in estonian youthful in finnish youthful in greek youthful in croatian youthful in hungarian youthful in lithuanian youthful in portuguese youthful in romanian youthful in slovenian youthful in ukrainian youthful in polish youthful in slovak