形容词

1. 有雄心的；有抱负的；有野心的
Someone who is ambitious has a strong desire to be successful, rich, or powerful.

2. 规模宏大的；艰巨的
An ambitious idea or plan is on a large scale and needs a lot of work to be carried out successfully.

1. having a strong desire for success or achievement

2. requiring full use of your abilities or resources

e.g. ambitious schedule
performed the most challenging task without a mistake

Synonym: challenging