其实是抄洋人护照写法。
大清国:持护照过境时,请立即检查放行,按照约定予以保护,不要为难阻止。
英国:to allow the bearer to pass freely without let or hindrance and to afford the bearer such assistance and protection as may be necessary.
米国:to permit the citizen/national of the United States named herein to pass without delay or hindrance and in case of need to give all lawful aid and protection.