ambitious ·adjective (PLAN)
Definition: If a plan or idea is ambitious, it will need a lot of work and will be difficult to achieve. Level: B2
政府计划在十年内完全转向可再生能源，这个目标非常宏大。
The government's plan to shift entirely to renewable energy within a decade is highly ___ambitious.
她将业务扩展到三大洲的宏伟计划需要付出巨大的努力。
Her ___ambitious plan to expand her business across three continents will require immense effort.
将旧工业区改造成一个绿色公园是一个雄心勃勃但值得一试的想法。
Transforming the old industrial zone into a green park is an ___ambitious but worthwhile idea.