1. Middle age is a dangerous period. People in this period often have neither the experience of the elderly nor the energy of the young; they are neither as strong as the elderly nor as impulsive as the young. . People in this period have both advantages and disadvantages. The advantage is more experience, but the disadvantage is less energy; 2. Middle-aged men are the backbone of the family and the backbone of society. 3. Middle age is the golden period of career. 4. Middle age is the maturity period of wisdom. 5. Middle age is the best period of life. In this period, there are old people at the top and young people at the bottom. There are achievements in work, a foundation in career, and physical security. 6. Middle age is the peak period of life, but it is also a dangerous period. 7. Middle-aged men are the backbone of the family and the backbone of society. They have to bear the double pressure of work and life. 8. Middle-aged people have to face many problems. They have to bear the double pressure brought by work and family, and they also have to face the double challenges of society and the times.

9. Middle-aged men are the backbone of a family and the backbone of society. They have to bear the double pressure brought to them by work and life;