ecologic problems
英
美
- 生态问题
双语例句
- Forest entomologists have concentrated on ecological problems.
森林昆虫学家所重视的是生态问题。 - Sewage itself is another major contaminant of water that can cause ecological problems and such human diseases as cholera and dysentery.
污水是引起水体污染的另一个重要因素，它会导致一些生态问题，使人引发霍乱和疟疾。
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