即使计算结果是精确的，收入数据也将一些经济幸福感的重要决定因素排除在外，如赚取该收入所需的工作时间。
Even if precisely measured, income data exclude important determinants of economic well-being, such as the hours of work needed to earn that income.
一些阻碍，如时间、空间、气候等等是人类在这个星球上遇到的外部阻碍；
Some ofthese obstacles, such as time, space, weather, are eternal in the humansituation on this planet.
接下来，创建Swing组件(在本例中是显示更新时间的jlabel子类)，如清单6所示。
Next, the Swing components (in this case a JLabel subclass that shows updating time) are created, as show in Listing 6.
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