根据汉语意思翻译句子。
1. 老师鼓励我们写下在夏令营的经历。
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2. 人们收集东西是为了记住生活中一些重要的事情。
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3. 这棵老树成了这个地方的一个象征。
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4. 我们的童年是多么快乐啊!
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5. 我爸爸以前常常开车送我去学校，但是现在我们坐地铁。
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1. The teacher encouraged us to write about our experiences at the summer camp.
2. People collect things to remember something important in their lives.
3. The old tree has become a symbol of the place.
4. We had such a happy childhood!
5. My father used to drive me to school, but now we take the subway.