ambitious a

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。

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。

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》