whistle-blower
noun [ C ] uk/ˈwɪs.əlˌbləʊ.ər/ us/ˈwɪs.əlˌbloʊ.ɚ/
（尤指政府部门或公司里的）告发者，揭发者
a person who tells someone in authority about something illegal that is happening, especially in a government department or a company
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。