As a way of repairing some of that damage, a group of conservation biologists has proposed an ambitious, or some might say, a radical plan, involving large vertebrates, or, megafauna.

一群自然保护生物学家提出了一个雄心勃勃的计划——或者有人会说，这是一个激进的计划——即，把大型脊椎动物或巨型动物包含在计划中，作为修复部分损害的一种方法。

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At previous summits, the United States set forth an ambitious and still unattained goal: forging a vast, hemisphere-wide free-trade zone.

VOA: standard.2009.04.15

"And,what you see is a new economy breaking through what's breaking down: that heavy,industrialized, over-ambitious,over-productive, over-consumptive model, which is actually going to completely destroy our chancesof survival in the future.

VOA: standard.2010.02.24

Already India is seeing a mad rush to set up special economic zones--a less ambitious step-- throughout the country.

FORBES: Magazine Article

It is a very ambitious Copa - possibly too ambitious, and there could be problems along the way.

BBC: SPORT | Football | Internationals | Tim Vickery column

He laid out a clear and ambitious plan -- a plan that flows from our core principles, the principles we ran on, our core mission that we said we were going to attend to when we took office a year ago.

WHITEHOUSE: Creating New Jobs by Investing in High-Speed Rail