On February 14, 2022, everyone had a happy Spring Festival holiday. Come to the research group to carry out the work of the new semester. Limited to the epidemic, the travel and reports of teachers and students have also been affected to some extent. But in any case, safety is the primary consideration. Today is St. Valentine's Day - tomorrow is the Lantern Festival on the 15th day of the first month. Students plan to use these two days to clean up and tidy up the laboratory. February March is a time for teachers to write funds and for graduate students to publish articles and organize ideas. Just after the spring equinox and the arrival of early spring, we welcome the beautiful weather of the new year with full enthusiasm and positive attitude.