伯吉特·韦特拉普在德克萨斯大学的儿童研究实验室进行了一项科学研究。
Birgitte Vittrup carried out a scientific study at The Children's Research Lab at the University of Texas.
事实上，这三组所有孩子的态度完全一样，但在研究了家长们写的日记后，韦特拉普找到了原因。
Practically all the children in all three groups came out the same but after studying the diaries kept by the parents, Vittrup understood why.
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