煞费苦心 shàfèikǔxīn painstaking Definitions Defs Origin Strokes Stroke Words Sentences Sents 1 sentence 他为了写好这本书,真是煞费苦心。 tā wèile xiě hǎo zhè běn shū, zhēn shì shàfèikǔxīn. He took great pains to write this book well. Source: Dong Chinese Dictionary