当你有困难时、我象幽灵般出现，当你无困难时我象幽灵般消失。
When you are in trouble, I like the ghost appears, when you have no difficulty I like the ghost disappeared.
威尔·考斯博士指出，这群男子有百分之30至40可以亳无困难地行走半哩路(800公尺)，有强的握力，以及认知功能极强。他表示，这实在是“太惊人了”。
Wilcox said about 30 to 40 percent of the men can walk up to half a mile (800 meters) with no difficulty, have strong hand-grip strength and high cognitive function.
如果这种类型系统的所有元素都是开源和免费的，那么完全采用无纸办公的困难就变成了员工培训和管理层排斥态度的转变。
With all the elements of this type of system as open source and free, the barriers to full adoption then become employee training and managerial reluctance to change.
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