71.  You have more energy and vigor to find a new method of study(work).

72.  We have reason to believe that hard work is the base of good harvest.

73.  but remember, it needs hard work and endurance.

74.  The second is that our medical work is developed.

75.  Most of them have enough food to eat and wonderful drinkes to drink, and they know better to relax themselves from hard work, so they begin more and more strong .

76.  they take a rest as well as work .

77.  Practice is bound to make your work smooth .

78.  The saying is also true for the other people, such as the people work in Hotel , restrostant , hospital, stores and so on.

79.  Different group do different work.

80.  Some time one worker only do one work.