disillusionment

Many young workers felt a sense of disillusionment after realizing that their dream job was actually boring.

(Chinese) 许多年轻员工在意识到他们理想的工作其实很乏味后，产生了一种幻灭感。

The candidate's failure to fulfill his promises led to widespread disillusionment among his supporters.

(Chinese) 候选人未能履行诺言，导致其支持者中普遍产生了幻灭感。