China needs to take an unremitting effort to advance its social and economical development as a whole.

中国需要进行长期不懈的艰苦奋斗，促进社会经济的全面进步。

youdao

The undeniable fact is that the amount of advertisement and economical development is directly proportional.

不可否认的事实是﹐广告的多少是和经济发达的程度成正比的。

youdao

The undeniable fact is that the amount of advertisement and economical development is directly proportional.

—这些就是实际存在的不可否认的事实，我们就要在这些事实的基础上考虑我们的问题。

youdao

The idea of long periods of economical and technological development, spanning 40-50 years, goes back to Nicolai Kondratieff, a Russian economist, who first published the idea of long waves in 1925.

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