The real test, though, is whether he has the tenacity to guide this exhausted city to its next chapter.

真正的考验是他是否有毅力带领这个精疲力尽的城市掀开新的篇章。

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Mr Dell's tenacity seems to be paying off. His firm, which used to be the world's biggest maker of personal computers, but had lost its crown to Hewlett-Packard, is beginning to regain market share.

戴尔的执着似乎有了回报，这个曾经的世界最大的个人电脑制造商，把王冠丢给了惠普之后，正在重新获得市场份额。

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Chitosan fiber can be used to prepare medical dressing, human body absorbable suture, support material for tissue engineering etc., but its lower tenacity greatly hinders its application area.

壳聚糖纤维可以用于制备医用敷料、人体可吸收缝合线、组织工程载体材料等，但目前壳聚糖纤维的强度较低，严重制约了其应用的领域。

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That it's so entertaining as it recounts the tumultuous 40-year marriage of an emotionally difficult 80-year-old Japanese Pop Artist and his onetime teenaged bride a union that has always been plagued by issues of money, alcohol and ego testifies to the tenacity of its director and the charisma of its subjects: Ushio (the Boxer) and Noriko Shinohara (Cutie).

WSJ: Filmmaker Generation Is Ready To Arrive

Il Palio is one of very few surviving medieval spectacles of its type in Italy, enduring thanks to the sheer tenacity of Sienese traditionalism.

BBC: Tuscany's medieval-style festival

That pink, including the iconic little pink ribbon, has maintained its status as one of the most powerful branding apps of all time can be credited to the tenacity and single-mindedness of those who support this purpose, which happens to be everyone from football players to yogurt-eaters.

FORBES: In The Pink: A Branding App Strong Enough To Weather Political Storms