Although the planned operation will be located more than miles away, drawing the soda ash in through pipelines, conservationists worry it could still upset the natural water cycle and breeding grounds.
2017年12月六級真題（第三套）閱讀 Section C
柯林斯高階英漢雙解學習詞典釋義
N-COUNT
環境保護工作者
A conservationist is someone who cares greatly about the conservation of the environment and who works to protect it.