"China really need to consider evacuating its citizens ASAP"
It may already be too late. I am surprised that China did not do it during the Winter Olympics.
China’s Ukraine evacuation plan on hold, with worse expected to come
https://www.scmp.com/news/china/politics/article/3168572/chinas-ukraine-evacuation-plan-hold-worse-expected-come?module=storypackage&pgtype=homepage