Pupil: The opening at the front of the eye through which light passes.
瞳孔：眼球前面的通道，光线通过它进去眼睛。
Racism: Discrimination against people based on their skin color or thnic heritage.
种族主义：基于肤色或民族传统的歧视。
Random Assignment: A procedure by which participants have an equal likelihood of being assigned to any condition with in an experiment.
随机分配：在实验中，参与者被分配到任何条件的可能性相等的过程。
Random Sampling: A procedure that ensures that every member of a population has an equal likelihood of participating in an experiment.
随机抽样：保证总体中每个成员参与实验的可能性相等的过程。
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