sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans
sapropel 30秒で
- (noun) sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans
Meanings
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1
noun sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans
Summary
sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans
- (noun) sludge (rich in organic matter) that accumulates at the bottom of lakes or oceans
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