尊敬的领导，敬爱的老师，亲爱的同学们，环境保护是一项长期而又艰巨的任务，让我们珍爱生命，善待自己，保护好我们的环境家园吧！
Distinguished leadership, beloved teacher, dear students, environmental protection is a long-term and arduous task, let us cherish life, to treat ourselves, our environment to protect their homes now!
敬爱的老师，亲爱的同学们，你们好！今天我们演讲的题目是：青春因奋斗而精彩！
Dear teachers and students: Good morning! Today, our topic is: Youth is wonderful because of the struggle.
敬爱的老师们，亲爱的同学们：大家早上好！
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