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painstaking
01
骨の折れる
requiring a lot of effort and time
例
The restoration of the historic building required painstaking effort to preserve its original features.
She conducted a painstaking investigation to uncover the truth behind the mysterious disappearance.
Writing the report was a painstaking process, involving thorough research and careful editing.
The artist's masterpiece was created through years of painstaking work and attention to detail.
The chef prepared the dish with painstaking precision, ensuring every element was just right.
