老师,同学们:大家下午好!我今天演讲的题目是——《文明在举手投足之间》。伍老师告诉我们,有一次,他在楼梯上看见一片纸屑,他就耐心地观察有没有人把它捡起来,五分钟,过去了,十分钟过去了,纸屑还在那里,伍老师很失望。我们的校园里还有走路打打闹闹、踩草皮。甚至,前一段时间还流行 Teacher, classmates: Good afternoon everyone! The topic of my speech today is - “civilizations are giving up”. Mr. Ng told us that on one occasion he saw a piece of paper dust on the stairs and he patiently observed if anyone had picked it up for five minutes and passed. Ten minutes passed and paper was still there. Disappointed. There is a walk on our campus and we are going to step on the grass. Even before, but also popular