在这些条目还发现'retrogression':
中文:
retrogressionUK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˌretrəʊˈgreʃən/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˌrɛtrəˈgrɛʃən/ ,USA pronunciation: respelling(re′trə gresh′ən)
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