场景：来自衣阿华的纵向研究数据。
罗伯特：你喜欢衣阿华的生活，我猜想。
他的第一站是衣阿华城，支持和反对并存。
His first stop was in Iowa City where he was met with support and opposition.
衣阿华州地处玉米带。
一个衣阿华大学的研究发现，只有20 %的病人发现装置时不舒服的。
University of Iowa study found that only 20 percent of patients found the device uncomfortable.
一个衣阿华大学的研究发现，只有20 %的病人发现装置时不舒服的。
University of Iowa study found that only 20 percent of patients found the device uncomfortable.
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