英汉词典

1. 不合法的;非法的;违反规则的
    If something is illegal, the law says that it is not allowed.

    e.g. It is illegal to intercept radio messages...
           拦截无线电报是非法的。
    e.g. Birth control was illegal there until 1978...
           1978 年以前那里节育是非法的。