To be fully content and satisfied with one's achievements or current situation, often implying a sense of self-satisfaction or complacency.
他终于完成了多年的心愿，此刻显得志足意满，脸上洋溢着幸福的笑容。
He finally achieved his long-cherished wish, and at this moment, he looked fully content and satisfied, with a happy smile on his face.
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