The "poor communication" problem we East Asians share (Chinese, Korean Taiwanese, Singaporeans, Vietnamese, etc) is because we live in a world with poorly developed fomal languages. Generaly, our written languages are NOT PHONETIC. Linguistically (academic studies & research) we East Asians have poor formal, anti-ergonomic language designs, both audio, visual & medically wrong. It cannot easily handle soft & loud spoken speech. It cannot handle the wide medical limitations of impaired speakers (very young, & older, medically disabiled like myself - in the last of these two caregories).
East Asians know that the message is not just the verbal, not just the words. We know that words alone cannot describe reality at all. Messages are not words, but also the very many contexts: visuals, paraverbals, nonverbals, audiences, precedents of many kinds, etc. Poor communicators cannot send nor deciper messages nor words. Even many video cameras simultaneously recording the events (TV SERIES, international - "Big Brother") cannot do this. Simple people do not know this reality of human living.
My three sisters & my brother (tobacco killed him off) are "A.B.C." -- Australian Born Chinese. We are FIFTH (5) generation here in Australia, so we can only use fluently English. In my high school years, I was forced to learn French & Latin languages as well, as were other A-achievers in Darwin High School (1963-7). Until recently, I have published, written widely, in English, on many academic, technical & business forums. For about ten years in Sydney's Toastmasters International, I rose to senior public speaking levels, plus ran radio shows & a radio station (part-time).
Like other good Australians at the time, I never studied, never did homework or other school work, except when the teachers were in front of the class. Some of us A-Achievers are just born like this, naturally, without need for working at all. It's called auto-didactic.
The white "experts" in linguistics are too scared & "Politically Correct" to tell the truth, as I have stated it above. These academic idiots refuse to comment on how NESBs (Non English Speaking Background) goons are ruining the English language with bad language conversions to English. Mainland China, followed by Singapore, in my expert opinion, are the biggest linguistic criminals.