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来源：雅诚德英语网
Since the early 1990s, several clinics have been established in the U. S. to treat heavy Internet users.
1990年代初以来，美国已建立了一些诊所来治疗重度依赖互联网的用户。
Since the early 1990s, several clinics have been established in the U. S. to treat heavy Internet users.
1990年代初以来，美国已建立了一些诊所来治疗重度依赖互联网的用户。