对许多美国人来说，这个假日也是他们回顾历史，反省作为一个美国人意义何在的时候。
And, for many Americans, the holiday weekend is also a time to think about history and reflect on what it means to be an American.
对许多美国人来说，这个假日也是他们回顾历史，反省作为一个美国人意义何在的时候。
And, for many Americans, the holiday weekend is also a time to think about history and reflect on what it means to be an American.
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