这是一个无人驾驶飞行器（Unmanned Aerial Vehicle）正在从任务返回：不是猎杀恐怖分子或侦探外国领土，而是监控犀牛数量、跟踪老虎偷猎者。
This is an Unmanned Aerial Vehicle returning from its mission: not hunting down terrorists or spying on foreign lands, but monitoring populations of rhinos and scouting for tiger poachers.