Since the time when human beings were born on this earth, change has been a constant factor in life.
自人类在地球上诞生，变化更替一直是生命中不变的因素。
Needing money seems to be a universal and constant factor and thus cannot explain the increasing labor force participation of women.
对钱的需要是一个世界性的持续的因素，因此不能解释妇女在劳动力参与比例的增长。
Needing money seems to be a universal and constant factor and thus cannot explain the increasing labor force participation of women.
对钱的需要是一个世界性的持续的因素，因此不能解释妇女在劳动力参与比例的增长。
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