Before the US stock market on January 27, Boeing announced its 2020 Q4 financial report. The financial report showed that Q4 revenue was US$15.3 billion, a year-on-year decrease of 15%; a net loss of US$8.439 billion was a loss of US$1.01 billion in the same period last year. What do you think about this, what do you think of Boeing's Q4 performance?