world,for,order,horse这四个单词里的or分别发什么音?

horse 英[h?:s] 美[h?:rs] or [?:]

world 英[w?:ld] 美[w?:rld] or [?:]

for [英][f?(r)][美][f?r,f?] or [?] /[?]

order [英][?:d?(r)][美][?:rd?(r)] or [?:]

(信息提供来自知米背单词)