例句： Last year freezing temperatures ruined Florida's citrus industry. Millions of dollars worth of produce were lost. Now weather forecasters are calling for severe cold. Industry analysts and farmers desperately want to know what they should do if another catastrophe occurs. That's the burning question.
A beautiful China is a major goal of the country's effort to build an eco-civilization. It is also an important part of the grand picture of national rejuvenation.....
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