If you turn off the lights, you will save electricity., If people throw away too much rubbish, they will create waste., If we recycle paper and plastic, we will help the environment., If people pick up litter, the park will be cleaner., If you give up using plastic bags, you will help nature., If people cut down trees, animals will lose their homes., If you don’t turn off the TV, you will waste electricity.

Environment

由
打印
嵌入

排行榜

我们目前正在努力改进排行榜功能。请通过提供您的反馈来帮助我们。

提供反馈

视觉风格

选项

我们目前正在改进活动设置。请通过反馈帮助我们。

提供反馈

切换模板

恢复自动保存：？