Through several years' work, the development of Xiyan cave has made a great progress.

经过几年的开发已初见成效，但也存在一些问题。

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Guanxi Round house It was built in 1798, is a defensive building through several years.

《关西围屋》关西围屋始建于1798年，历经几百年风雨，是一座具有极强防御性的建筑。

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The mining efficiency is increased through several years' exploration and the improvement of domestic equipments, and get good benefits.

通过几年的探索与改进，提高了采矿效率，取得了较好的技术经济效果。

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With massive balance sheets and shareholders with the patience of Job, some may persevere through several years of poor returns in their hunger to conquer Manhattan.

ECONOMIST: Out of their league?

The chances of a "Green Lantern" sequel look slimmer with each passing day, "Wonder Woman" plans fell through several years ago, and it's anyone's guess as to how next year's Superman reboot, "Man of Steel, " will be received.

CNN: Hollywood brings out big guns for a superhero summer

When Charles Darwin published "On the Origin of Species" in 1859 it was like an acid eating slowly through several thousand years of religious thought.

WSJ: Book Review: Indivisible | Real Presences | The Habit of Being | Gravity and Grace | On the Origin of Species