单语范例（未经PONS编辑处理）
The gradations between weak ties are often blurred, among other reasons because all relationships are fluid and dynamic.
en.wikipedia.org The degree of spreading (blurring) of the point object is a measure for the quality of an imaging system.
en.wikipedia.org So too, both pictures merge the model with the environment, blurring the distinction between background and foreground.
en.wikipedia.org Furthermore, both franchises have blurred the lines between canon and non-canon content by adopting unofficial material into later official productions.
en.wikipedia.org Online identity stealth blurs the line on infringement of the rights of would-be victims to identify their perpetrators.
en.wikipedia.org