Believe it or not, despite the stereotypical image of nonchalant,lounging teenagers, teenagers today actually carry a heavier load thanyou may think, the report found.

• 无论相信与否，报告发现虽然青少年给人的印象是冷漠和懒散，但是你可能不知道实际上当今的青少年负担有所增加。