What can we learn from the first-ever samples from far side of the moon?

①China's special Middle East Envoy has met with Iranian officials in Tehran. How significant is this visit amid ongoing conflicts in the region? (00:37) ②Euro zone business activity contracted sharply in September.(14:17) ③Lunar Samples collected from China's Chang'e-6 mission have provided new understanding of the far side of the moon. (24:59) ④An interview with UN Secretary-General Antonio Guterres (37:53) ⑤China offers flexible jobs for women after childbirth. (46:38)