I suggested that there was a critical response to those issues that was somewhat negative, and I want to sort of remind you of that from W. E. B. Du Bois's review of Black Boy when it came out.

对于负面问题,有个关键评述，大家看一下,关于《黑孩子》的评论。

耶鲁公开课 - 1945年后的美国小说课程节选

du But here you've got pressure constant. du, T this is du, not H here. du/dT is only equal Cv to Cv when the volume is constant, not when the pressure is constant.

这里是压强横笛，du，这是，不是H，偏U偏,只在体积恒定时等于，而不是压强恒定时。

麻省理工公开课 - 热力学与动力学课程节选