mising the ability of future generations to meet their own needs.根据定义，可持续发展战略提出的目的是在不损害子孙后代的利益的前提下满足今天人们的需要。
67. the fulfillment of one’s duty and obligations履行某人的职责与义务
68. maintain the stability and unity of our country 维护我们国家的稳定和统一
69. children’s love for their parents is the latter’s best reward.孩子对父母的爱是对父母最好的回报。
70. vigor and vitality生机与活力
71.an age of awakening觉醒的时期
72. lay a good foundation for the future为将来奠定坚实的基础
73. lack of awareness of time’s passage不能意识到时光的流逝
74. go sightseeing出去观光
75. remain fresh in one’s memory让某人记忆犹新
76. it turned out that结果表明…(接从句)
77. lengthen people’s life expectancy延长人们的寿命
78. if science is properly used, it will benefit mankind, while if it is misused, it will lead to tragic result