He did the backdoor deals that allowed the government to get its budget through Parliament on time.他做了不正当交易, 使政府预算能够按时得到议会批准。

He brushed aside talk of greedy MPs voting themselves a backdoor pay rise.他没有理会有关一些贪婪议员自己投票、想要偷偷摸摸涨工资的说法。

a backdoor route into Europe进入欧洲的后门路线