Here is a story：A man sees a butterfly. The butterfly tries to get out of its chrysalis（蛹）. Feeling sorry for it, the man decides to help. He cuts the chrysalis and the butterfly comes out easily. Surprising enough, the butterfly is unable to fly.
If the butterfly doesn't struggle（挣扎）to get out of the chrysalis, it can't fly! The struggle develops the energy in the butterfly which makes it fly. Similarly, the challenges of life bring out the best in young people and make them fly…
向阳而生！努力前行……
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