There's a volume, there's a temperature, than the pressure here. There's other volume, temperature and pressure here, corresponding to this system here.

温度等状态函数有本质区别，这个状态有一组，确定的体积，温度与压强。

麻省理工公开课 - 热力学与动力学课程节选

And this volume, temperature and pressure doesn't care how you got there. It is what it is.

另一个状态,也有一组确定的体积。

麻省理工公开课 - 热力学与动力学课程节选