It's like a city park, maintained and expanded as needed.
这就像一个城市公园，保持和扩大需要。
WHO-recommended preventive interventions need to be maintained and expanded.
必须继续坚持并推广世卫组织建议的预防性干预措施。
The practice show that the system can not only meet demand of the Naval Integrated Tactical Training Simulation system, but also easy to be maintained and expanded.
实践证明，该系统不但能够满足海军一体化战术训练仿真系统的需求，而且易于维护和扩展。
The two sides have maintained relatively frequent exchanges of top-level visits, expanded areas of cooperation and achieved remarkable results.
双方保持了比较频繁的高层互访，合作的领域进一步扩大，合作的成果也比较显著。
Rapid economic growth shall be maintained, domestic demands shall be expanded, and new employment opportunities created to the full, so as to increase total employment.
继续保持经济较快增长，扩大国内需求，最大限度地创造新的就业机会，增加就业总量。
It is expanded annually, after a period of public review, and maintained regularly through the identification and correction of errata.
每年会在一段时间的公开审阅之后对该框架加以扩充，并且还会通过确定和修正错误，定期对其加以维护。
The Protein Data Bank maintained at Brookhaven National Laboratories has expanded to the point where even experienced users have difficulty understanding, exploring, and exploiting it.
在布鲁克海文国家实验室维护的蛋白质数据库扩展到了甚至有经验的用户在理解、浏览和利用它上都有困难这一点上。
The Protein Data Bank maintained at Brookhaven National Laboratories has expanded to the point where even experienced users have difficulty understanding, exploring, and exploiting it.
在布鲁克海文国家实验室维护的蛋白质数据库扩展到了甚至有经验的用户在理解、浏览和利用它上都有困难这一点上。
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