在第二个实验中，50名学生被同质地分为两个组，这一次两组被试都在光线强度相同的明室中进行实验，其中一组被试被要求佩戴墨镜，另一组则佩戴透镜。

In the second experiment, 50 students were similarly divided into two groups, this time in equally bright rooms, but one group was given sunglasses to wear and the other glasses with clear lenses.

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参赛队将在半天（3个小时）的时间内被一次两两分为一组组成一支跨国联队（混合队），包含两个机器人。

A1. Teams will be paired together to form multinational teams ("multi-teams") of two (2) robots, for half a day (3 hours) at a time.

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