The strategy can take numerous shapes, matching stocks with options, two classes of the same stock, commodities against each other or just about any two assets that are affected by the same forces.
这一策略可以多种形式实施：股票配期权、同一股票的两个类别互配、各种大宗商品进行组合搭配，或用受同一力量影响的任意两项资产进行配对交易。
The association's only complaint was about the deadline — which forces larger stores to take down their displays by April of 2012 and gives smaller stores an extra three years to comply with the ban.
医疗协会唯一不满的是条令的限期，条令规定大商店在2012年四月前撤下陈列，而小商店则还有更多三年的限期。
A 2004 paper by Robert Gilmer, an economist with the Dallas Fed, has an interesting take on some of the forces that have helped Texas diversify.
罗伯特·基尔默(Robert Gilmer)是达拉斯联邦储备局的一名经济学家，他在2004年的一篇报告中对于促使德州经济多样化的原因提出了一个有趣的观点。
That timetable suggests the troop commitment, which will take U.S. forces to nearly 100,000, will not be the sort of open-ended increase requested by top U.S. commander Gen. Stanley A. McChrystal.
这个时间表意味着，美军将投入近10万兵力的驻阿富汗任务，不会像驻阿最高指挥官麦克里斯特尔将军所要求的那样无限升级。
In operation it is acted upon by a plurality of forces and displacements take place in different directions.
运行中它承受多种力的作用并产生不同方向上的位移。
That timetable suggests the troop commitment, which will take U. S. forces to nearly 100,000, will not be the sort of open-ended increase requested by top U. S. commander Gen. Stanley A. McChrystal.
这个时间表意味着，美军将投入近10万兵力的驻阿富汗任务，不会像驻阿最高指挥官麦克里斯特尔将军所要求的那样无限升级。
When we take a species out of its native home and transport it elsewhere, it may face new challenges and die off, or it may find itself virtually unencumbered by constraining forces.
如果我们让一个物种离开原产地，运到别处去，那么在新环境中，这个物种可能会遭遇到新的威胁而相继死亡，也可能发现几乎没有任何一种可以制约自己的力量。
When we take a species out of its native home and transport it elsewhere, it may face new challenges and die off, or it may find itself virtually unencumbered by constraining forces.
如果我们让一个物种离开原产地，运到别处去，那么在新环境中，这个物种可能会遭遇到新的威胁而相继死亡，也可能发现几乎没有任何一种可以制约自己的力量。
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