Earlier quoted context omitted.
"As a result Japanese people (probably Chinese too) have a hard time processing some of the English syllables. This creates difficulty in learning English for Japanese and Chinese." We can also say that American/English have a hard time processing some of the Japanese/Chinese syllables. All the languages I speak a little bit have distinctive sounds that are difficult for most non-native speakers to master unless you…
What I am saying is that in English, after learning 26 letters, you can read any combination of them. If you try to see how many possible syllables there are, there would be many thousands. Combinations like "eng" "lish" can't be properly put in Japanese phonetic characters because you can't put "eng" directly, you have to use "en gu ri shu", inserting vowels all over the place. Japanese can't properly learn English…
Not really. For instance: trough.
I forget the specifics and terminology, but to read English competently, you have to be familiar with at least several hundred different letter-sound mappings.