And to defend against the invading legions of would-be gardeners and hotel cleaners, the frontier is also equipped with high-tech military gizmos, such as unmanned spy planes with infra-red cameras.

• 为了防止那些未来的花匠及旅馆清洁工跨越国境，国境上还设置了高科技的军用设施，例如装有红外照相机的无人驾驶飞机等。