Lacking adequate provision of fresh water, electricity, sanitation or health care, they suffer privations that all too often provide the tinder for the fires of social unrest.
他们无法获得足够的淡水、电力、卫生和保健，他们所受的困苦常常成为社会动乱的火种。
There is no fresh air provision for office building.
办公楼不设计新风系统。
There is no fresh air provision for office building.
办公楼不设计新风系统。
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