1An issue relating to the surroundings or conditions in which a person or thing lives, works, or exists.
2The general concern about protection of the natural environment from the harmful effects of human activity.
1960s.
英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。