The most convincing reasons for asking for leave are family emergencies, important festivals or celebrations, sudden personal affairs, attending important meetings or training, and physical reasons.

1. Family emergencies: sudden illness or accident of family members, requiring care and companionship.

2. Important festivals or celebrations: traditional festivals in China such as Spring Festival and Mid-Autumn Festival, or important celebrations such as weddings and birthdays, you need to spend time with your family.

3. Sudden private affairs: such as sudden need to deal with emergencies such as house sale, moving, and family decoration.

4. Attend important meetings or trainings: For example, important industry meetings and trainings organized by the company will help to improve professional quality and business ability.

5. Physical reasons: due to illness or physical discomfort, treatment and rest are needed.