thoughtfulness

After a few minutes of quiet thoughtfulness, she proposed a solution that satisfied everyone.

用法提示：thoughtfulness 为不可数名词，此处与 quiet 搭配，表示‘沉思、思虑’。

His thoughtfulness about the risks helped them avoid a serious mistake.

用法提示：thoughtfulness 为不可数名词，后接 about sth，表示‘对……的深思熟虑’。

She had the thoughtfulness to weigh every option carefully before making a decision.

用法提示：thoughtfulness 为不可数名词，用于 have the thoughtfulness to do sth，表示‘有深思熟虑去做某事’。