目前，一些学校校园内部浪费现象严重。为此，你班要组织一次“杜绝浪费，提倡节约”的主题班会，请你写一份英语演讲稿，准备在班会上发言。提示内容如下：
注意：1. 词数100～120个。
2. 演讲的开头和结尾已写好，不计入总词数。
Boys and girls,
May I have your attention, please? Now I’d like to make a speech here.                    
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That’s all, thank you.