Deep ditches, double drawbridge, massive stone walls, eight great towers, cannon, muskets, fire and smoke.

深深的壕堑、双重的吊桥、厚重的石壁、八座巨大的塔楼。大炮、毛瑟枪、火焰与烟雾。

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The Mandelbrot set is infinitely deep and complex at all scales, but a float or a double can go only so deep before losing the ability to distinguish adjacent points.

Mandelbrot集合在各个级别上都是非常细微和复杂的，但是float或double可以在失去区分相邻点的能力之前达到这个细微的级别。

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The double stapling technique is safe, and easily performed for colorectal anastomosis in deep pelvis, and it can enhance the rate of anal-saving operation in low rectal carcinoma.

双吻合器应用于直肠癌前切除术中的结直肠吻合具有操作简单，节约手术时间和安全等优点，并可适当提高低位直肠癌保肛率。

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Double binds and deep and abiding biases cause many women to make extreme choices.

FORBES: Connect

After the latest recession began, CEOs across organizations have been hit by a double whammy, having to execute deep restructuring involving involuntary departures of younger workforce, while facing a baby boomer retirement.

FORBES: Don't you want to know what you "know?"

He took a terrible swing at a first-pitch slider, then hit the next pitch for an RBI double just beyond the reach of a sliding McCutchen deep in the right-center field alley.

WSJ: Mets catch up to McCutchen, beat Pirates 3-2