新闻不是一件产品；新闻产业作为社会的第四阶层，是国家政体的支柱。
The news is not just a product; the press is the fourth estate, a pillar of the polity.
大多数的体育迷都忘记了一件事，那就是从1994年以来，“永续”就正式成为奥运的“第三大支柱”，另外两项分别是体育与文化。
Though most sports fans may have missed the fact, since 1994 "sustainability" has been the official "third pillar" of the Olympic movement, the other two being sport and culture.
可用于冲洗单体液压支柱表面的煤尘和污垢，亦可用于各种车辆，零部件的清洗和保养。
It can be used to wash dust and dirt on the surface of single hydraulic prop, and it can also be used for the cleaning and maintenance of various types of vehicles and components.
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