短語詞組短語Mastermind with painstaking effort 苦心經(jīng)營require painstaking effort 非下苦功不可make painstaking effort 下苦功Requires Painstaking Effort 要非下苦功不可keep going by painstaking effort 煞費(fèi)心思to manage by painstaking effort 慘淡經(jīng)營 返回 painstaking effort