How to say “He sat on the back step sharpening the blade with a little file, tooth by tooth, until it got dark.” in Japanese
In Japanese
あの人、裏口の段差に腰かけて、小さなヤスリで刃のギザギザをひとつずつ研いでたよ。暗くなるまでずっと。
Ano hito, uraguchi no dansa ni koshikakete, chiisana yasuri de ha no gizagiza o hitotsu zutsu toideta yo. Kuraku naru made zutto.