西北地区的生态环境问题不是工业的污染，而是农业生产活动的破坏。
The environmental problems in the northwest are not the industrial pollution, but the damage of agricultural activities.
西北地区自然环境得天独厚，既具有悠久的历史文化，又具有深厚的民族体育传统。
The northwest has abundant natural environment long historical culture and profound national sports tradition.
我国是一个多山的国家，尤其是西南、西北地区，特殊的地域环境和地质条件致使滑坡灾害肆虐。
China is a mountainous country, especially in the northwest and southwest where landslides run riot because of the especially geological environments and conditions.
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