父(ちち) chichiは wa不(ふ)眠(みん)不(ふ)休(きゅう) fuminfukyuuで de働(はたら)い()た() hataraita。 My father worked without sleep or rest. Literal Father [topic-は] no-sleep-no-rest [with-で] worked. 不眠不休 is a four-character compound meaning 'without sleep or rest.' で marks the manner/condition. A dramatic way to describe intense work. workfamily四字熟語 (four-character compound)
父(ちち) chichiは wa不(ふ)眠(みん)不(ふ)休(きゅう) fuminfukyuuで de働(はたら)い()た() hataraita。 My father worked without sleep or rest. Literal Father [topic-は] no-sleep-no-rest [with-で] worked. 不眠不休 is a four-character compound meaning 'without sleep or rest.' で marks the manner/condition. A dramatic way to describe intense work. workfamily四字熟語 (four-character compound)