Bioluminescence is mainly a Marine phenomenon. It is not found in freshwater.

生物发光现象主要出现在海洋中，淡水中并无此种现象。

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Bioluminescence is mainly a Marine phenomenon. It is not found in freshwater.

生物发光现象主要出现在海洋中，淡水中并无此种现象。

youdao