牢骚láosāocomplaint; grievance; to grumbleHSK 7-9PronunciationláosāoExample sentence他对公司的管理制度满腹牢骚。Tā duì gōngsī de guǎnlǐ zhìdù mǎnfù láosāo.He is full of complaints about the company's management system.Read and choose an answerOne fixed sampleExplore a sample