Tree-planting Day
March 12 is Tree-planting Day. 树可是大自然的宝贝！They are wonderful!
Trees do us a lot of good! 它们可以清洁空气。想一想，是不是每次到了树林里都会觉得空气特别新鲜舒服？
Trees cut down noise. 树林里是很静谧的哦！Trees give cool shade. 尤其是在夏天，树阴下是多么凉爽啊！
Trees make oxygen. 树叶会释放氧气，这可是我们人类赖以生存的气体。
Trees give birds homes.. 如果没有树，我们就见不到很多美丽的鸟儿啦。
Trees look great! 一颗大树看上去多威风、多漂亮啊！
Trees can ...