environmental benefit and cost analysis

例句：

1. 1. The company's environmental policies are designed to reduce pollution.
   该公司的环保政策旨在减少污染。
2. 2. Thegovernment has implemented stricter environmental regulations.
   政府实施了更严格的环保法规。
3. 3. The studyfocused on the impact of climate change onthe environment.
   该研究关注气候变化对环境的影响。