【下位】 a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes うまく合わない靴の接触で起きる皮膚の硬く厚くなること（特につま先の上または横）。
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【下位】 lack of sensibility; "there was a dullness in his heart"; "without him the dullness of her life crept into her work no matter how she tried to compartmentalize it." 感受性の欠如。
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