国家建立了针对突发性自然灾害的应急体系和社会救助制度。
The state has set up an emergency system and a social relief system to deal with abrupt natural disasters.
为做好灾民的救助工作，中国建立了针对突发性自然灾害的社会救助制度。
The Chinese government has set up a special social relief system to relieve the sufferings of victims of unexpected natural calamities.
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