Blow the whistle——向权威部门举报不合法、不能接受的行为。
“Janet came under a lot of pressure from her colleagues when she blew the whistle on what was going on in the bank.”
“珍妮特在同事那受到很大压力,因为她举报了银行了发生的事。”
(a whistle blower is the noun – “more recognition needs to be given to the courage it takes to be a whistle blower“.)
(whistle blower是对应的名词——“应该对举报人的勇气给予充分重视”)