safe-conduct pass安全通行证
under safe-conduct翻译
N-UNCOUNT（不可数名词） If you are given safe conduct, the authorities officially allow you to travel somewhere, guaranteeing that you will not be arrested or harmed while doing so. 通行证 [also 'a' N]
Her family was given safe conduct to the US when civil war broke out.
当内战爆发时，她的家庭得到了去美国的通行证。