Lake sediment nevertheless constitutes an important "carbon sink," serving to store - sometimes for a very long time - a significant portion of the carbon-containing material that does not decompose.

然而湖泊沉积物又是一个重要的“碳汇”，用来存储-有时存储很长的时间-相当大部分不能分解的含碳物质。

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In the aftermath of a massive bloom, dead phytoplankton sink to the ocean or lake floor.

在一场大规模水华后，死亡的浮游植物沉入海底或湖底。

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The original city was built on the site of a former lake-the Aztecs built the city on a series of aquatic platforms, but when the Spanish conquered the city, they drained the lake, causing it to sink.

原来的城市是建在以前湖的原址上-阿兹·特克人将城市建在许多水生平台上，但当西班牙人征服该城时，他们就将湖水排干，致使城市下沉。

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