这是细砂。
She kept lifting handfuls of fine sand and letting it pour through her fingers.
她不停捧起一手细沙，又让它们顺着手指流下去。
Look again carefully, we can see the water is clear, even inside the fine sand, stone can be crystal clear.
再看仔细一点，便可以看清海水格外清澈，连里面的细砂、石子都看得一清二楚。
Look again carefully, we can see the water is clear, even inside the fine sand, stone can be crystal clear.
再看仔细一点，便可以看清海水格外清澈，连里面的细砂、石子都看得一清二楚。
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