The symbolic meaning of the topic "How is steel made" was mainly reflected in the following aspects: 1. The symbolic meaning of strength and perseverance: Steel is made of chemical synthesis under high temperature and high pressure. It has a strong structure and rich alloy elements. It symbolizes that people need to have strong will and perseverance to persistently pursue their goals in the face of difficulties. 2. Symbolism of growth and change: Steel needs to be continuously tempered and processed in the production process to become stronger. At the same time, it needs to be processed and used differently to play different values. This symbolized that people needed to constantly learn and practice to adapt to the changing environment in the process of growth in order to continuously improve their abilities and qualities. 3. The symbolic meaning of tenacity and unyielding: steel has tenacious corrosion resistance and wear resistance, and can withstand various extreme environmental conditions. It also symbolizes that people need to have tenacious perseverance and unyielding spirit to maintain a positive and optimistic attitude in the face of setbacks and difficulties. " How is steel made?" The topic emphasized the symbolic meaning of perseverance and continuous improvement by comparing the process of steel making with the process of growth and change. It also implied that people needed to have a strong will and perseverance, as well as the ability to constantly learn and adapt in the process of achieving their goals and pursuing their own life values.