数字游戏 第二季原名:The Numbers Game Season 2,又名数字人生 第二季
Do you have courage? Confidence? Commitment to a goal? If you do, you might be tougher than you think. Toughness is about **** than just strength; explore the science behind the basic building blocks of toughness, and learn how to boost your natural fortitude to become tough as nails.