A teacher was murdered and you come here with your private education bashing and meaningless language analysis again.

Of course, it was intended to be. I have been very consistent in saying this over the years, and I have also pointed out the reasons. Quality education is not a commercial item, and the scam, cheat and the absolutely detestable low educational quality level of training centres in China attests to that.

"Center" is the American variant spelling of the British "centre" spelling, and since I am European, I follow the British variant. Both are considered correct on their own merits.