She lifts Tohin's hand, which is own brother to the hoof of a drayhorse, and examines it to see whether 'tis a stone in the frog or a cast shoe he has come for.

她抬起托宾的手，这手活像运货马的马蹄。 她仔细端详着，仿佛在检查是有石头卡在了蹄楔中，还是掉了只马蹄铁。

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He knelt down and crawled from the switch rails to the frog of the crossover, sliding his hand along the running surface and the head of the rail and feeling for possible corrugations or dents, or burrs shaved off by the wheels of the locomotives.

NEWYORKER: Among Animals and Plants