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The mission -- consisting of an orbiter, a lander, and a rover -- is "the most ambitious thing one could do on a first attempt," says John Logsdon, a space policy expert at George Washington University.

Noting the contributions made by successive counselors and researchers during the past 70 years, Li expressed the hope that the newly appointed counselors and researchers will make proposals for overall development, pay attention to the livelihood of the people and voice their expectations, and better carry forward China's fine traditional culture.

Chen Xi, a member of the Political Bureau of the CPC Central Committee and head of the CPC Central Committee's Organization Department, read Xi's letter at the meeting.

Universities, research institutes and businesses across the country joined forces to develop vaccines, medicines and treatment. A vaccine developed by Chinese researchers was the world's first to enter phase-two clinical trials on April 12. By July 23, nine enterprises in China had started clinical trials of COVID-19 vaccines. The emergency use of COVID-19 vaccines has also started.

More efforts should be made to encourage and guide Party members and officials in carrying forward the revolutionary traditions, Xi said, adding that a system under which officials "don't dare to, are unable to and have no desire to commit acts of corruption" must be advanced as a whole.