The concept is not new .

这不是一个新概念。

Ppp is a long-term concept .

购买力平价是一个长期概念。

The concept is spreading around the country .

活动所宣扬的观念正在全国传播开来。

For me , capitalism has never been an abstract concept .

对我来说，资本主义从来都不是一个抽象的观念。

The concept behind tonido is simple .

tonido背后的概念是很简单的。

But inspiration at its core is a spiritual concept , not rooted in psychology .

但激励的核心是一种精神观念，而不是根植于心理学。

This was done to reinforce the concept that the company owns you and your time .

这样做是为了强化一种观念，公司拥有你和你的时间。

The concept of adding iron to the ocean dates to at least 1990 .

向海中添加铁这一观点至少可追溯到1990年。

Potential is an inherently slippery concept .

潜能是一种内在的稍纵即逝的概念。

This artist 's concept depicts a supermassive black hole at the center of a galaxy .

本文的观点描述了一个处在星系中心的超大质量的黑洞。