每年九月的第一个星期一，美国人庆祝劳动节。
Americans celebrate Labor day every first Monday of September.
劳动节，九月的第一个星期一，是建立劳动运动，是专门为美国工人的经济和社会成就。
Labor day, the first Monday in September, is a creation of the labor movement and is dedicated to the social and economic achievements of American workers.
某些美国的假日并没有特定的日期，如：五一劳动节是在九月的第一个星期一庆祝，还有其他没有特定日期的假日为。
Some American holidays have no definite date, like Labor day, which is celebrated on the first Monday of September. Other holidays like this are.
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