On stormier lakes, they made stronger bases for the pilings by placing square log frames on the lake bottom.

在风浪较大的湖上，他们在湖底放置方形木料框，给木桩奠定更加坚实的基础。

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It lives near the lake bottom in the shallow water of the lake shore and feeds on benthic invertebrates.

它生活在湖边浅水区靠近湖底的水域，以底栖无脊椎动物为食。

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They would drive long poles into the lake bottom within these frames, and then build their houses on these long poles.

他们在这些框内，向湖底打进长木桩，然后在长木桩上修房。

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He finally saw her, a big black shadow moving slowly near the lake's bottom.

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One of the largest flooded cavities in the world (the lake at the bottom is estimated to be 70m deep), this cavernous subterranean space was only discovered by locals in 1924.

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Pipes have now been put in place in Lake Nyos and nearby Lake Monoun to siphon water from the lower layers up to the surface and allow the CO2 at the bottom of the lake to slowly bubble out, preventing a repeat of 1986 tragedy.

BBC: 1986: Hundreds gassed in Cameroon lake disaster