Anyone familiar with psychology has probably heard a statement like this: A significant percentage of male &female undergraduates displayed X when prompted by Y.

熟悉心理学的人也许都听过这么一句话：受到Y的刺激时，有相当比例的男性和女性大学生呈现出了X的反应。

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A human with two X chromosomes is female, while someone with an X and a Y is male.

有两个X染色体的是female, XY染色体的是male。

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The number of female billionaires is growing only half as fast as the male billionaire population, Wealth-X says.

称，女性亿万富翁的增长速度仅为男性的一半。

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And despite the largely unequal paychecks drawn by Baby Boomers and Gen X, the gap is closing between male and female urban workers in their 20s.

FORBES: Leadership