"拥有决心"可以用英文表示为 "have determination" 或 "be determined".

关于"决心"的来源，"determination"这个词来自拉丁文"determinare"，意思是"确定、决定"。它有着较强的意志和决策的含义，指的是一种坚定不移的想法或意图。

下面是一些使用"have determination"或"be determined"的例句，希望能帮助你理解这个词的用法：

She has determination to succeed in her career. (她有着成功事业的决心。)
He is determined to finish the marathon no matter how difficult it is. (他决心要完成马拉松，不管有多难。)
They have the determination to overcome any obstacle. (他们有着克服任何障碍的决心。)
She is determined to make a difference in the world. (她决心要改变这个世界。)