thriftiness

Her thriftiness allowed them to save enough money for a family vacation.

用法提示：thriftiness 是名词，在句中作主语，表示‘节俭’这种品质。

The old man's thriftiness was famous in the village; he never wasted a single coin.

用法提示：thriftiness 作主语，说明主语的特征，义为‘节俭’。

Thanks to her thriftiness, she could buy a new computer without borrowing money.

用法提示：thriftiness 作介词宾语，表示‘节俭’这一特质。