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.

youdao

最终的进展花费了几个月的时间去证实，并且这是研究者们第一次使用一种叫做微引力透镜的新技术。

The breakthrough eventually took several months to confirm and was the first time researchers used a new technique called gravitational microlensing.

youdao