1. A good sister-in-law should know how to take care of herself so that she can take better care of her family.
2. A good sister-in-law should be able to care about and understand her mother-in-law, making her feel the warmth of the family.
3. A good sister-in-law should not only take good care of her own children but also care about and help other family members.
4. A good sister-in-law should know how to respect and tolerate her mother-in-law's opinions and habits and not interfere too much in her life.
5. A good sister-in-law should be loving and patient, showing care and support to family members.
6. A good sister-in-law should be responsible, handling all kinds of family affairs well and always paying attention to the needs of family members.
7. A good sister-in-law should have wisdom and flexibility, being able to deal with various family problems and solve difficulties and contradictions.
8. A good sister-in-law should have a positive attitude towards life, passing on optimistic and upward strength to family members.
9. A good sister-in-law should know how to take care of her physical and mental health and maintain good living habits.
10. A good sister-in-law should have her own life goals and pursuits. She should not only play the role of a family member but also have her own interests and development.