2. Get rid of "economy", there is no meaning about economy in this sentence;
3. Delete "and learning";
4. Remove "modern";
5. Remove "one";
6. Say "no" to the back of the house;
7. His eyes are dim and there are tears in his eyes.
8, authorities at all levels should strictly implement the control range of air conditioning temperature, practice strict economy, give full play to the exemplary role.
9. Add a "to" after "all";
10. After three years, delete "De" and replace "He" with: Pass.