n.決定；自主；意志力

She offered to help us of her own volition. 她自愿提出要幫助我們。

She left entirely of her own volition. 她完全是自愿離開的。

I didn't ask him to go;he went of his own volition. 我沒有要求他去，他是出于自愿的。

Such cloudy weather can wear people's volition. 這種陰陰的天氣最是消磨人的意志。

How can ability make his volition firmer? 怎么樣才能讓自己的意志更堅(jiān)強(qiáng)？

adj.意志的；憑意志的；有意志的