假设你是红星中学高三一班的学生李华，为响应绿化祖国的号召，你班四月十二日去郊区植树，请根据以下四幅图的先后顺序，介绍植树活动的全过程，给某英文杂志的绿色行动专栏写一篇以Green Action in Our Class为题的英文稿件。
注意：词数不少于60
提示词：郊区 suburbs
April 12 is memorable because our class had a meaningful experience on that day. In the morning, we bicycled to the suburbs to plant trees, talking and laughing all the way. Upon arrival, we began to work immediately. Some were digging holes. Some were carrying and planting young trees. Others were watering . After getting the work done, we put up a board reminding people to protect the trees. Before leaving we took some photos to record our green action. Seeing the lines of trees, we all had a sense of achievement. We feel its our duty to protect and beautify our environment.
四月十二日是值得纪念的，因为我们班在那一天有一次有意义的经历。在早上，我们骑自行车到郊区植树，一路上有说有笑。到达后，我们立即开始工作。一些正在挖孔。一些人携带和种植小树。其他人正在浇水。做完这工作后，我们提出了一个提醒人们保护树木的董事会。在离开之前，我们拍了一些照片来记录我们的绿色行动。看到树木的线条，我们都有一种成就感。我们认为保护和美化环境是我们的责任。
