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這是一篇討論美國經(jīng)濟復(fù)蘇的文章

文中7s，9s有破折號，36s有冒號。
Some of this can be easily explained. New ways of organizing the workplace -- all that re-engineering and downsizing -- are only one contribution to the overall productivity of an economy, which is driven by many other factors such as joint investment in equipment and machinery, new technology, and investment in education and training. Moreover, most of the changes that companies make are intended to keep them profitable, and this need not always mean increasing productivity: switching to new markets or improving quality can matter just as much. Two other explanations are more speculative. First, some of the business restructuring of recent years may have been ineptly done. Second, even if it was well done, it may have spread much less widely than people suppose.
這其中的一些原因很容易解釋。企業(yè)重組的新方法--所有那些重新規(guī)劃和縮小規(guī)模的做法--只能對一個經(jīng)濟的整體生產(chǎn)力做出一方面的貢獻，而生產(chǎn)力的發(fā)展還受到許多其它因素的驅(qū)動，如設(shè)備機械上的聯(lián)合投資、新技術(shù)、以及教育和培訓上的投資。另外，公司大部分的改革是為了贏利，而達到贏利的目的不一定非要提高生產(chǎn)力：轉(zhuǎn)入新的市場或改善產(chǎn)品質(zhì)量也會有同樣的功效。 其他兩種解釋帶有很大的猜測性。一種解釋認為，近年來的一些企業(yè)重組也許進行得并不恰當。另一種解釋則認為，即使有成效，效果也沒能像人們所設(shè)想的那樣廣泛。