Tennis requires great strength in the arms and legs as well as strong concentration on the game.

打乒乓球不仅需要强壮的臂力和腿部力量，还需要集中精力。

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In the end, our security and leadership does not come solely from the strength of our arms.

最后，我们的安全及领导能力并不仅仅源于实力。

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One of the most frequently told tales about Lincoln's strength is that he won a bet the could drink from a barrel held in his arms.

有关林肯的力气，人们谈论最频繁的故事之一，是他打赌他能举着酒桶直接喝酒。

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"China will not join any arms race, pose a threat to other countries or exceed its national and economic strength to develop arms, " Xinhua said in a commentary on Tuesday.

WSJ: China Adds Aircraft Carrier to Its Navy

Rebel fighters have taken up arms, but their strength has often paled in comparison to the better-equipped regime troops.

CNN: Syria suggests it might not withdraw forces by deadline

In the end, our security and leadership does not come solely from the strength of our arms.

WHITEHOUSE: President Obama on the Way Forward in Afghanistan and Pakistan | The White House