1.
They even sought to keep the environs clean and the drains unpolluted.
他们还能保持环境清洁，而不污染水道。
2.
The circle wanted to be whole,
圆环想让自己保持完整，
3.
adhere to the Basic national policy of environmental protection
坚持环境保护基本国策
4.
Green: environmental, health, life and sustainable development.
绿色：环保、康、命、持续发展。
5.
environmental education campaigns;
支持环保教育活动；
6.
small ear-ring (used to keep the hole in a pierced ear open )
（用以保持耳环孔不封口的）小耳环.
7.
We supported the development of the environmental industry and the recycling economy.
支持发展环保产业和循环经济。
8.
Research on the Mechanism of the Circular Economy Environmental Protection-Sustainable Development;
循环经济环保——可持续发展机理研究
9.
Persist Environmental Priority Strengthen Environmental Supervise Projects
坚持环保优先 强化建设项目环境监察
10.
Keep dormitory and common areas clean.
随时保持宿舍整洁，以维持公共环境之品质。
11.
Insist on the strategy of continuous agriculture and set up the environmental construction of the conservation of water and soil;
发展持续农业战略 建设水土保持生态环境
12.
Keep inside and outside of the workshop under cleanness.
负责保持生产车间内外部环境的整洁。
13.
The DS1 remains OOS while the loopback is performed.
在执行回环期间，DS1 会一直保持 OOS 状态。
14.
Convention on Environmental Protection and Sustainable Development
环境保护和可持续发展公约
15.
We should protect our natural environment and support ecotourism.
我们应该保护自然环境，支持生态旅游。
16.
Environmental Protection and Sustainable Development,Legal Principles and Recommendations
环境保护与持续发展, 法律原则和建议
17.
Fertilizer Strategies for Sustainable Agriculture and Environmental Protection
促进持久农业和环境保护的施肥战略
18.
Construction of water and soil conservation and ecological protection projects has been accelerated.
水土保持生态环境工程速度加快。