“使不抱幻想”可以翻译为 “disillusion someone (about something)” 或者 “make someone disillusioned (with something)” 。
例如：
The harsh reality disillusioned her about the ideal job.（残酷的现实使她对理想的工作不抱幻想了 。）
This experience will make him disillusioned with romantic relationships.（这次经历会让他对浪漫的恋爱关系不抱幻想了 。）