Expo 1933 Chicago America established its theme as "a Century of Progress", after which each Expo had a theme.

1933年美国芝加哥世博会确立“一个世纪的进步”的主题。

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To partake in a Century of Progress, we showcased a "Mechanical Wonderland," where visitors could operate over 200 pieces of machinery.

为了将我们融入“世纪的进步”这个主题中去，我们展示了一个“机械化的梦幻大陆”。 身临其中，游客可以操作两百多件机器。

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Just over a decade into the 21st century, women's progress can be celebrated across a range of fields.

进入21世纪刚过去10年，女性在许多领域的进步可以得到庆祝。

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Through a century of progress and struggle, we have stood together, in good times and in bad.

WHITEHOUSE: President Obama on the Relationship Between Australia and the United States | The White House

Women in large swaths of the U.S. are dying younger than they were a generation ago, reversing nearly a century of progress in public health and underscoring the rising toll of smoking and record obesity.

FORBES: Life Expectancy Is Falling For U.S. Women

On Bill of Rights Day, we celebrate the liberties secured by our forebears, pay tribute to all who have fought to protect and expand our civil rights, and rededicate ourselves to driving a new century of American progress.

WHITEHOUSE: Presidential Proclamation -- Bill of Rights Day, 2012