这是个模糊不清的概念。
我们的身体也没有中心这样一个概念。身体和意识彼此之间假定有边界的话，也是模糊不清的。
Our bodies have no centrality either. Bodies and minds blur across each others' supposed boundaries.
但是，新加坡管理大学的Chung Wai - Keung认为，与工作问题相比，新加坡人民并不关注模糊不清的整体化概念。
But Singaporeans care less about fuzzy notions of integration than their own jobs, says Chung Wai-Keung of the Singapore Management University.
这一现状导致在网络教育中应用桌面虚拟现实技术存在着概念模糊不清、技术门槛高、应用范围广且杂的特点。
These resulted in the characteristics of ambiguous concept, technology threshold, wide and miscellaneous scope in applying desktop virtual reality in web-based education.
自汉代始，历代文献中对铍的注释存在很大分歧，以致长期以来铍的概念一直模糊不清。
The notes to pi in ancient literature from Han to Qing dynasties are quite different, so the concept of pi was not clear for a long time.
自汉代始，历代文献中对铍的注释存在很大分歧，以致长期以来铍的概念一直模糊不清。
The notes to pi in ancient literature from Han to Qing dynasties are quite different, so the concept of pi was not clear for a long time.
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