研究表明，有效的治疗方法可以帮助所有种族，民族，文化群体的成员。
Research shows that effective treatments are available that can help members of all racial, ethnic, and cultural groups.
他的梦想帮助美国所有种族的人得到相同的权利。
His dream helped American people of all races (种族) get the same rights.
他的梦想帮助美国所有种族的人得到相同的权利。
His dream helped American people of all races (种族) get the same rights.
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