Bacteria housed on a graphite fiber anode break down the fats, proteins and sugars in sewage, freeing up a steady stream of electrons, which the bacteria transfer directly into the electrode.

细菌被安置在石墨纤维制成的阳极上，分解污水中的脂肪、蛋白质和糖类，此过程中产生的稳定的电子流将被直接输入电极。

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UP ON the MOUNTAINS the midday sun glared fiercely, but down in the valley near the swift-running stream it was cool and still.

山顶上太阳炽热的烤着，发出炫目的光，但下边的山谷里急速流动的小溪旁却凉爽安静。

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Let; s go down this path, and then we can cross the stream and climb up to the top of that mountain.

让我们沿着这条路走，然后穿过小溪，爬上那座山的山顶。

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And also a consequence of that development itself changes the flood risk up and down the stream so there is a two-fold risk.

BBC: Flooding 'to hit more in Wales', climatologist warns