These days, as studies in the U.S.show bullying on the rise and parental supervision on the decline, researchers who study bullying say that calling moms and dads is more futile than ever.

如今，随着美国的研究显示欺凌行为在上升，而父母的监督在下降，研究欺凌行为的研究人员说，给父母打电话比以往任何时候都更没用。