Read Edit View history 叠层石 diécéngshí stromatolite Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 叠层石/疊層石 · diécéngshí · stromatolite 2026/03/04 叠层石 / 疊層石 diécéngshí stromatolite stromatolite 叠层石是地球上最古老的生命证据之一。 created sense Mar 4, 2026, 02:25 AM