Today, when I walk on the street after school, I find the street is very clean, it is very different from usual days. I am so curious, so I ask the cleaner, she tells me that many students have behaved, they don’t throw away the rubbish anymore. I think about the education about the environment last week, it works. We should protect the environment.

　　今天，當我放學回家走在路上的時候，我發現街道很干凈，和往日很不一樣。我非常好奇，因此問了下清潔工，她告訴我很多學生已經自律了，他們不再隨處扔垃圾。我想起了上周關于環境的教育，確實起作用了。我們應該保護環境。?