Hello, I am back here,I havent been log in here for long time,i dont know when i log in last time.but i am not stop my write,i still write in English in other place.Now,i am back,i would share my learning or some experience in here.today is the first day of February,i feel the time is very fast,the the 2021 is pasted one month,there have 11 months,i have to use it to do some value things.as i review the 2020,i felt that is very fast,its as fast as i am not experice the 2020. the 2020 what was not good year for many people,is the 2021 will better,i dont know,i hope it is.anyway,the Chinese New Year will coming soon,i watched the News,many people have to stay other city,they cant back their home,couse by the virus have been  expancing,i hope they have a good New Year ,even staying other city.i pray we all can safe and health.bless us.