Concentration can be cultivated. One can learn to exercise will power, discipline one's body and train one's mind.

专注力是可以培养的，一个人可以学习使用意志力，让身体纪律化并训练一个人的心智。

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Each chapter includes at least one exercise that will help you realize the power of connecting.

每一个章节都会告诉你至少一个将会帮助你意识到联系的力量的练习方法。

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But the shift in its relative position vis a vis the rising nations of Asia, particularly China, will tighten the constraints on the exercise of its power.

然而，与日益兴起的亚洲国家(尤其是中国)相比，美国相对地位的改变将使其在行使权力时更受克制。

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How long the Greens will be able to exercise so much power will be determined to a large extent on how they wield it now.

BBC: Greens enjoy taste of power in Australia's parliament

The first thing to note is that the manner in which he will exercise power formally is of no importance.

CENTERFORSECURITYPOLICY: In Russia, a landslide to tyranny

Frail though he is, Fidel Castro will continue to exercise a veto power over the pace and direction of change in Cuba.

ECONOMIST: Fidel Castro steps down