“我将竭尽全力为你们奋斗，”他向美国承诺。
"I will fight for you with every breath that I have," he promised America.
我们超越了几个世纪可怕的历史，向全世界证明美国能够履行其人人平等的承诺。
We had overcome centuries of gruesome history and proved to the world that America could live up to its promise.
但这也是我们向美国劳工致敬的日子，我们要向伟大的美国中产阶级重申我们的承诺，因为正是他们世世代代的努力造就了美国世界之骄的地位。
But it's also a day to honor the American worker - to reaffirm our commitment to the great American middle class that has, for generations, made our economy the envy of the world.
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