小湾水电站开挖区地形、地质构造复杂，边坡高而陡。

There are varied topography and geologic structures and excavated slopes are high and steep at (Xiaowan) Hydropower Station.

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尼拉贡戈火山的火山管道构造复杂，宛如树木盘根错节。

Nyiragongo has an intricate plumbing system, widespread as the roots of a tree.

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如果正要构造复杂的、内部相互联系的项目，第二种方式是至关重要的。

If you're trying to make sense of complex, interconnected projects, this second approach is vital.

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And, the bottom line in modeling is make it only as complex as you need to.

模型构造的底线是,根据你的需要尽量把它弄得复杂。

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And the brain is a remarkably beautiful and complex structure involving cortex, the cortex has maybe over 50 billions neurons and each one is connected to a thousand others and so forth.

大脑的构造漂亮，复杂，让人惊叹,大脑有皮层，皮层中的神经元多大500亿之多,每个神经元都与数亿千计的其他神经元相连。

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