symbolic conversion program

例句：

1. 1. The symbolic gesture of the hand raised in salute is a common expression of respect.
   举手致敬这个象征性的手势是常见的尊重表达。
2. 2. In literature, symbols are often used to represent ideas or concepts that cannot be expressed directly.
   在文学中，符号通常用来代表那些无法直接表达的思想或概念。
3. 3. The ancient Egyptians believed that the scarab beetle was a symbol of rebirth and renewal.
   古埃及人相信象鼻虫是一种象征重生和更新的符号。