Xi’an is polluted, average PSI reading 300+.
Due to the busy scheduled for this trip, I stayed in office and hotel most of the time.
However, I probably overspent on the food during meal times.
Anyhow, I am done with it and look forward to head for HK tomorrow.
 
 

A true friend is not to curry favor with you when you are promoted step by step,but he will stand with you together through storm and stress when you are in trouble.
（To: a friend will appear in the future)