On January 6, sure enough, the only way to control smog was artificial rainfall. In the past few days, Xi'an is like a myopic eye that looks like it sees after taking off its glasses, and the inside of the nostrils is black every day.

Today I saw an argument that was very eye-catching, saying that the smog is actually more terrible than SARS, and the smog is boiled frogs in warm water.

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