South Korea will develop an ultra-small satellite constellation capable of reconnaissance on North Korea every 30 minutes
At the end of next year, at least 70% of colleges and universities in Beijing will create green schools
U.S. pulls out of Afghan Air Force to train and repair aircraft by "cloud"
The cumulative number of confirmed cases of new crown in Brazil exceeds 18 million
Japan's increasing number of confirmed cases of new crown hits a new high
The Columbus crew starts the new season 3 days later, the second round of the U.S. Champions League is doubtful
Luzhou is full of style, not only in fine wines
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