white pollute 白色污染
sustainable development 可持續(xù)發(fā)展
ecosystem 生態(tài)系統(tǒng)
environmental pollution 環(huán)境污染
over-fishing (overgrazing) 過度捕撈(過度放牧)
sandstorm 沙塵暴
resource exhaustion 資源枯竭
water and soil conservation 水土保持
soilerosion 土壤流失
clear-cutting (deforestation) 濫砍濫伐
desertification 沙漠化
conserve natural resources 保護自然資源
shortage of freshwater 淡水短缺
disruption of ecological balance 生態(tài)失衡
natural preservation zone 自然保護區(qū)