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对…有用， 对…有帮助

1. As the service is free to use, an evaluation of its effectiveness and quality cannot be measured by volume.

2. Twelve months of voluntary service may be highly constructive to one's career development in that it enriches experience and enhances resumes.

3. Popular psychology seems to be something acutely lacking among a certain segment of China's celebrities and public service managers.

4. He said other factors could be used to evaluate the performance of a chain store, such as service quality and profitability.

5. The award puts him in the coveted company of 272 celebrities, lawmakers and other dignitaries to be honoured for their public and community service.

6. The service will be a key strategy for the company to ensure sustained development of the two networks and to make the two more complementary.

7. Scores of short films and public service announcements will be aired giving the audience tips about how to conserve energy and reduce their environmental impact.

8. Reform of the customs service must be deepened to further facilitate customs clearance and to improve customs supervision.

9. " It would be saying too much to make too big a deal out of this, " one Secret Service official said.

10. Service providers could be allowed to delay the implementation of the new plan due to time needed for technological upgrading of their charging systems.