Phono-semantic — one part hints at the meaning, another at the sound
Example phrases
地方债务长期缺乏透明度,已经成了投资者的一块心病。Dìfāng zhàiwù chángqī quēfá tòumíngdù, yǐjīng chéng le tóuzīzhě de yí kuài xīnbìng.The long-standing lack of transparency around local debt has already become a serious worry for investors.
考试成绩不好成了她的心病,晚上总睡不好。Kǎoshì chéngjì bù hǎo chéng le tā de xīnbìng, wǎnshang zǒng shuì bu hǎo.The poor exam results have become her secret worry; she always sleeps badly at night.
找个时机把误会说开,免得留下心病。Zhǎo ge shíjī bǎ wùhuì shuō kāi, miǎnde liú xià xīnbìng.Find a moment to clear up the misunderstanding, so it doesn't leave a lasting worry in your heart.