The children always has a keen desire to learn.

孩子们有着强烈的求知欲。

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A property-owning middle class is not only fuelling a surge of consumption but also developing a keen desire to protect its property.

一个有产的中产阶级不仅刺激了消费的飙升，而且有保护自己财产的热切渴望。

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He was drawn by such a keen desire for Carrie, driven by such a state of turmoil in his own affairs that he thought constantly it would be best, and yet he wavered.

他这么想要嘉莉，那些乱七八糟的私事又逼得他走投无路，他一直认为这是个上策，但是他还在犹豫。

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"But there's another reality, and that is a keen Iraqi desire for sovereignty, " Petraeus said.

CNN: Iraqi leaders turn wary of Iran, Petraeus says

"There is a very keen sense of desire to exercise sovereignty, and so there is a natural impulse, " he says.

NPR: Petraeus: 'Long, Hard Slog' In Iraq