✔ 最佳答案
Due to regulations Japanese version need to have mosiac(encryption) at the private parts, but 北米 do not have such regulation.
therefore
北米版 = decoded Japanese = no code=原原版
4級=北米版
3級=Japan版
You decide 北米版好看還是原版的好看.
ButI know girl like to watch 3級 more than 4級
2006-11-02 17:23:21 補充:
Also sometimes 北米版 is in english and with english subtitles