两重天

xīn jiù zhì dù liǎng chóng tiān

新旧制度两重天。

The new system is distinctly different from the old one.

zài shěn shèn de tí jí jìn nián lái zhèng zhì jīng jì liǎng chóng tiān de jú miàn shí shuāng fāng chéng nuò jiāng ràng zhèng zhì hé jīng jì liǎng gè chē lún qiáng lì yùn zhuǎn

在审慎地提及近年来政治、经济两重天的局面时，双方承诺将让政治和经济两个车轮强力运转。

In a deliberate reference to the dichotomy of recent years, they promised to to set in vigorous motion the two wheels of both politics and the economy.