外教社大学英语听说教程1答案
One day on my way to school，I ran across a traffic accident，in which a girl was seriously injured by a motorcycle.I rushed to her rescue instinctively.I lifted her in my arms and hailed a taxi，which took us quickly to a nearby hospital.
After emergency treatment，the girl came to.I felt at ease when I knew that she had only suffered from minor bone fractures and would recover in a couple of weeks.I left the hospital without giving my name，but my heart was full of joy and peace.Not until then did I understand the meaning of the proverb：\"Helping others is the source of happiness.\"This may be the most unforgettable experience of my life.
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