His concupiscent gaze revealed an inner greed for material pleasures.

concupiscent 来自拉丁语 concupiscentia（强烈欲望），由 con-（加强）和 cupiscere（渴望）组成。这个词形容"充满强烈欲望的"，特指对感官或物质享受的贪婪渴望。