在哥伦比亚大学管理生物圈2号的那几年里，海洋酸化已经成为气候变化的最令人不安的影响之一。
In the years following Columbia's stewardship, ocean acidification has become one of the most troubling effects of climate change.
1981年，美国第一艘宇宙飞船哥伦比亚号经过三天试飞后于4月14日返回地球。在试飞期间，哥伦比亚号共绕地球飞行36圈。
April 14th 1981, America's first space shuttle, Columbia, returned to Earth after a three-day test flight. The shuttle orbited the Earth 36 times during the mission.
想改变这种形象并不容易，但是1996年就着手管理生物圈二号的哥伦比亚大学正在尝试着这样做。
Shaking this image has not been easy, but Columbia Universi ty, which began to manage Biosphere 2 in 1996, is trying .
想改变这种形象并不容易，但是1996年就着手管理生物圈二号的哥伦比亚大学正在尝试着这样做。
Shaking this image has not been easy, but Columbia Universi ty, which began to manage Biosphere 2 in 1996, is trying .
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