1,Being lacking of drinking water gives rise to health problems, and influences the economical development of many developing countries.
2,This may cause war around the world.
3,We should make full ues of the sea water.
1,Being lacking of drinking water gives rise to health problems, and influences the economical development of many developing countries.
2,This may cause war around the world.
3,We should make full ues of the sea water.