环境库兹涅茨曲线是学术研究的热点问题，但是，对环境质量演进波动的研究还是空白。

Environmental Kuznets curve is a hot point of academic research, but, nowadays, little research has been done on the fluctuation of environmental quality evolvement.

youdao

环境库兹涅茨曲线是学术研究的热点问题，但是，对环境质量演进波动的研究还是空白。

Environmental Kuznets curve is a hot point of academic research, but, nowadays, little research has been done on the fluctuation of environmental quality evolvement.

youdao