Mitchell, who has a PhD in aeronautics and astronautics from the Massachusetts Institute of Technology, said it's only a matter of time before we need to evacuate Earth and seek a new home.

米切尔拥有麻省理工学院的航空和航天博士学位，他说我们需要撤离地球去寻找新的家园只是时间的问题。

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Pamela Mitchell, founder of the Miami-based Reinvention Institute, says that change can mean anything from taking on new responsibilities to switching departments.

迈阿密Reinvention Institute的创始人帕梅拉·米切尔（Pamela Mitchell）表示，从承担新的职责到转至新的部门，改变可以是多种多样的。 那么，如何打破现状呢？

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Senegar-Mitchell joined the Biotechnology Institute's Teacher-Leader Program, an annual workshop that provides teachers with the skills, strategies and knowledge to raise awareness of biotechnology in their home communities.

VOA: standard.2009.11.25

Phillip Mitchell, of the International Institute for Strategic Studies, estimates that the 7th Armoured Brigade won't be ready for combat for at least six weeks, though British paratroopers and commandos will be ready sooner.

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Mitchell Guttman, of the Broad Institute of MIT and Harvard and soon-to-be faculty at Caltech, discovered an entirely new type of gene.

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"They sound impressive when you first hear the numbers but when you begin to look at them, it's a very tiny scale that doesn't add up to much, " said Stacy Mitchell, senior researcher at the Institute for Local Self Reliance, a nonprofit national research organization.

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