valetudinaire
基本释义
多病的(人)，虚弱的(人)
实用场景例句
伦理讨论
Her ungrateful attitude toward the charity workers who rescued her was deeply troubling.
她对救助自己的慈善工作者的忘恩负义态度令人深感不安。
日常对话
He was ungrateful for the help his friends offered during his difficult times.
在困难时期，他对朋友提供的帮助显得忘恩负义。
职场关系
The employee was ungrateful for the mentorship, refusing to acknowledge the manager's guidance.
该员工对导师指导不领情，拒绝承认经理的指导。
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