There were no signs marking the international border, no fences, no barbed wire.
2
一位官员称那个建筑备有“特殊”的保安措施,其中包括两道安全门和三、四米高的围墙,上面设有铁丝网。
An official described the compound as having "extraordinary" security measures, including two security gates and walls three to four meters high topped by barbed wire.
Aside from some twists of barbed wire, a tall (and now cracked and pock-marked) surrounding wall, number 25 is not much different from the largish houses across the potato fields opposite.