wèi / le / àn / shí / wán / chéng / gōng / chéng / tā / zhè / jǐ / tiān / zhēn / shi / tuō / pí / diào / ròu / de / gàn

为了按时完成工程，他这几天真是脱皮掉肉地干。

To finish the project on time, he has been working unbelievably hard these past few days.