grindstone

grindstone
[ˈgraɪndstəʊn]
sustantivo
1muela (f) piedra (f) de afilar
  • to keep one's nose to the grindstone (sentido figurado) -> trabajar como un negro

grindstone [graind-stoun]
sustantivo
1Amoladera.
2Muela, la piedra en que se afilan los cuchillos, tijeras y otros instrumentos cortantes.

grindstone [ˈɡraɪndstəʊn] d
noun
muela; (f)
to keep one's nose to the grindstone batir el yunque

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evidently, plainly, clearly, obviously