ambitiousness

Her ambitiousness drove her to start her own company at a young age.

用法提示：ambitiousness 在此句中作主语，表示'不凡的抱负'这一特质。

The ambitiousness of the plan impressed the investors.

用法提示：ambitiousness 作为介词 of 的宾语，修饰 plan，表示计划本身的宏大目标。

His ambitiousness in pursuing a double major was admirable.

用法提示：ambitiousness 与介词 in 连用，表示在某方面的抱负。