求翻译：你有没有任何乱抛垃圾扔在地上，你有没有公共墙壁上绘制的图片吗？有你不断砍伐树木呢？如果你的答案是“否”，就意味着你已经帮助保护我们的环境。是什么意思？

You throw any litter on the ground, do you have any public pictures drawn on the walls? You are constantly cutting down trees? If your answer is "no", it means you are helping to protect our environment.