sharpening

2 篇文章
perhaps sharpening his senses.
Walden 21
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9 0 2

perhaps sharpening his senses. 也许能使感官变得更敏锐

senses sharpening his perhaps
but each urchin has five teeth, which are self sharpening and are replaced every few months.
Walden 21
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19 0 2

but each urchin has five teeth, which are self sharpening and are replaced every few months. 但是每只海胆有5个锋利的牙齿 而且每隔几个月就换牙

sharpening self urchin teeth replaced which every few five has months each are but and
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