练习册

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    一些人隋艺砍伐树木.一些人猎杀飞鸟.一些人乱扔废纸.这些对我们的环境都造成了恶劣的影响. Some cut down trees without any thinking,some hunted birds for fun,and others littered the rubbish everywhere,which had a bad effect/influence on the surroundings. 【查看更多】

     

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