More recently, however, some companies have been investing money in a more ambitious undertaking: learning how to adjust the fundamental make-up of the food they sell.

然而，最近一些公司开始投资一项更加雄心勃勃的事业：学习如何调整他们销售食品中的基本成分。

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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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For socially ambitious couples this is a problem.

对在社会地位方面有野心的夫妇来说，这是个问题。

《柯林斯英汉双解大词典》

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 incidentally, to know where he's coming from on this, he had a very dramatic and ambitious goal.

我想顺便提一下他为何会去研究儿童,他有着一个宏伟且远大的目标

耶鲁公开课 - 心理学导论课程节选

I was thinking of something a little bit less ambitious.

我本来想得到一个不这么直白的回答

耶鲁公开课 - 博弈论课程节选

Kevin Pietersen seemed to be battling through but aimed a very ambitious shot at a ball that wasn't there.

BBC: Jonathan Agnew column

Travelling to the badlands of Arizona or Wyoming is a tad ambitious even for a long weekend, but there is a corner of Europe with impeccable cinematic credentials as a stand-in for the Wild West.

BBC: Ten weekends in Europe's great outdoors

But an American divorce-insurance company, SafeGuard, is planning a more ambitious product that will pay a big bonus to those who stay married for 25 years.

ECONOMIST: Ending a marriage is horrid. Insurance might ease the pain