71.  We should save fresh water by all means, such as planting , reducing pollution.

72.  If we try our best to save water, it will become richer again.

73.  It's no exaggeration to say that man will kill themselves without taking measure to save water.

74.  It is can save a lot of fresh water.

75.  On one hand, we should not waste fresh water, we should save up every drop of water.

76.  Above all, we should save water.

77.  First, we should save the fresh water.

78.  At first we must have our best to save a drop of fresh water.

79.  To solve the problem, we must save the fresh water and reduce the polution .

80.  When people realize this, they can save fresh water at home, at school, in factory and everywhere.