Because the volunteers introduced many special plants that only grew in the wetland , I learned more about why to use those plants , and where to find them . For example : a green plant like this
, may look very comman , but if you tear its leaf half , there will be liquid coming out , and the liquid can cure the stung caused by bees .
After this trip , I understood more about the envirament , and I want to do something to protect it .
