On a scale of 0 to 10, where higher numbers denote more trust, basic income
recipients gave an average score of 6.8 for trust in other people, versus 6.3
in the control group.
原文在此: https://tinyurl.com/yxhkhvxk
前文已经有提及这个实验与他的受试者
为什么黄色部分的basic income recipients前方不加the?
有时会觉得一些名词前面加或不加定冠词都可以
想请大家帮忙厘清概念