Investors were shocked by what happened a year ago, when stocks didn't exactly follow the historical pattern.

一年前发生的情况就曾令投资者感到震惊，当时股市并未延续历史上的一贯走势。

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Today, in launching this global plan, WHO, together with Roll Back Malaria partners, is attempting to break this historical pattern.

今天在启动这一全球计划时，世卫组织与遏制疟疾伙伴们一起，正在努力打破这种历史格局。

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Using samples from around Southeast Asia, Buckley and his colleagues saw this pattern in tree rings from recent years, when he could corroborate the rings with other historical climate information.

VOA: standard.2010.04.05

Historian and sociologist Rodney Stark finds that the historical pattern fits the current one.

FORBES: The Seminary Bubble

If consumers follow their historical pattern, the current deleveraging cycle should last another 4 to 7 years.

FORBES: Getting Real About Real Growth

The United States has clearly not escaped the historical pattern of long and slow recoveries after financial crises.

FORBES: Some Hope Amidst Gloomy Jobs Report