但我觉得你说的还是从发音的角度来区分口音, 但我觉得除了发音, 还有 “speech music" (the term I read from some book) which affect accent, i.e., even if two people both have correct pronunciation of words (correct pronunced "s"&"th", "L"&"n", etc), however where they are from will affect their "speech music", hence affect their "accent".