Object Performance: The recognition that objects exist independently of an individual's action or awareness; an important cognitive acquisition of infancy.
客体表现：对客体独立于个人行为或意识而存在的认识；婴儿期重要的认知习得。
Observational Learning: The process of learning new responses by watching the behavior of another.
观察学习：通过观察别人的行为来学习新的反应的过程。
Observer Basis: The distortion of evidence because of the personal motives and expectations of the viewer.
观察者基础：由于观察者的个人动机和期望而导致证据的扭曲。
Obsessive-Compulsive Disorder (OCD): A mental disorder characterized by obsessions-recurrent thoughts, images, or impulses that recur or persist despite efforts to suppress them-and compulsions-repetitive, purposeful acts performed according to certain rules or in a ritualized manner.
强迫性障碍(OCD)：一种精神障碍，其特征是