To contravene a law or rule means to do something that is forbidden by the law or rule.
例句
The Board has banned the film on the grounds that it contravenes criminal libel laws...委員會決定禁播這部電影，理由是它觸犯了刑事誹謗法。He said the article did not contravene the industry's code of conduct.他說這一條款并未違反行業(yè)的行為準(zhǔn)則。
英漢詞典釋義
vt.
取消,違反
The moves contravene the peace plan agreed by both sides.這些舉措違反了雙方同意的和平方案。
英英詞典釋義
Verb
1. go against, as of rules and laws;
"He ran afould of the law""This behavior conflicts with our rules"