2. First, because dad understands that the daughter put the empty bottle back next to the garbage in order to give the old man who picks up the waste a labor dignity-to eat by labor; Second, because the help I once gave to the elderly was a kind of charity; The third is because of misunderstanding about my daughter.

On the one hand, it refers to the old people who pick up waste products, on the other hand, it refers to people who live with dignity through labor.

4. Example: The use of action description vividly shows the daughter's relaxed, happy and very proud psychology after completing the task. (reasonable)

5. For example: on the one hand, it refers to the dignified warmth that the daughter brought to the old man who picked up waste with empty bottles; On the other hand, it refers to the warmth that a father feels when he sees his daughter grow up. (reasonable)