Shenzhou-20 crew completes fourth spacewalk news.cgtn.comChina’s Shenzhou-20 crew set for 4th round of extravehicular activities news.cgtn.comBP China Insight : Peach Theory: China and U.S. Resume Talks on $50 Billion Boeing Aircraft Deal å·´å£«çš„å ±Shenzhou XX astronauts complete fourth round of extravehicular activities China DailyShenzhou-20 taikonauts complete fourth series of extravehicular activities Xinhua
