oxygen

23 篇文章
has bushy gills to extract oxygen from the current.
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has bushy gills to extract oxygen from the current. 并依靠浓密的鳃从水中过滤氧气

current extract gills bushy oxygen has from the to
Low in nutrients, but high in oxygen.
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Low in nutrients, but high in oxygen. 营养物质不多 但含氧量却很高

low nutrients oxygen high in but
and produces so much oxygen
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and produces so much oxygen 产生了大量氧气

oxygen produces much so and