網友回答：
great changes have taken place in shanghai and more and more people throughout the world are focusing their attention on shanghai now. as a citizen of shanghai， i decide to help plant more trees to make our city more beautiful. second， i should study hard
溫馨提醒：隨時光變遷，文中所陳述觀點；準確性、難免有所變動，因此文中觀點僅供參考。
