sifting

2 篇文章
sea urchins sifting the accumulating drifts.
Walden 21
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19 0 2

sea urchins sifting the accumulating drifts. 海胆,收集并过滤漂流物

drifts accumulating urchins sifting sea the
sifting through the droppings for nutrients.
Walden 21
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19 0 0

sifting through the droppings for nutrients. 它们从粪便中过滤营养物质

sifting droppings through nutrients for the
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