environmental element

例句：

1. 1. The study of the environment is crucial for understanding the impact of human activities on the planet.
   研究环境对于理解人类活动对地球的影响至关重要。
2. 2. The city's efforts to improve its environmental standards have been praised by many experts.
   该市努力改善其环境标准，得到了许多专家的赞扬。
3. 3. The research team identified several environmental elements that could be improved upon.
   研究小组识别了几个可以改进的环境要素。