The finest edge is made with the blunt whetstone.

最好(鋒利的)刀口是由鈍的磨刀石磨成的.

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A fine - grained whetstone for giving a keen edge a cutting tool.

人能用青銅做成一種刃口鋒利的切削工具.

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Competition is the whetstone of talent.

競(jìng)爭(zhēng)磨煉才能.

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With justice as its whetstone, the multiverse shall achieve perfection.

以正義為其磨刀石, 多宇宙將可到達(dá)完美的地步.

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Emulation is the whetstone of wits.

競(jìng)賽是智力的磨刀石.

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