People usually complain about what? This question can be answered by common complaint themes in daily life. These complaints may involve personal life, work environment, social issues, service quality, and many other aspects.

人們通常抱怨什麼？這個問題可以從日常生活中常見的抱怨主題來回答。這些抱怨可能涉及個人生活、工作環境、社會問題、服務質量等多個方面。