The concept was invented by a group of students at Brown University in Rhode Island after a friend complained of waking up tired and performing poorly on a test.
这一概念是由罗德岛州布朗大学的一群学生创造的，因为他们的一个朋友抱怨说早上起来很累，考试发挥得很差。
The concept was invented by a group of students at Brown University in Rhode Island after a friend complained of waking up tired and performing poorly on a test.
这一概念是由罗德岛州布朗大学的一群学生创造的，因为他们的一个朋友抱怨说早上起来很累，考试发挥得很差。
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