铅笔画不出的痛
        
            [qiān bĭ huà bù chū de tòng]
        
        
            'The Pain That Pencil Cannot Draw' is a metaphorical expression indicating deep sorrow or anguish beyond words, like pain that cannot be visually illustrated or explained using ordinary means such as writing with a pencil. It emphasizes profound, inexplicable inner distress.