主题on weekends 的作文

Do you know Planting Day?On that day,many people are going to plant trees.Last weekend,my family and i went to Zhongshan Park to plant some trees.We were very tired but happy.My father planted the trees,and my mother watered the trees,I saw my father and mother doing this and learnt a lot .We all know that our city becomes dirtier and dirtier,but why don't we push our hands to save the enviroment?Planting Trees is a good way to improve the enviroment,let's go and try our best to protect the environment and plant more trees.I believe our city will be more beautiful one day.