have been feeding the hyenas 在喂食这些鬣狗时

256. has now been taken a step further.
     如今已经发展到了新高度
257. Yousuf is calling the hyenas to his house.
     约瑟夫在呼唤鬣狗们去他家
258. He and his forefathers, going back five generations,
     他和他的祖辈 连续五代人
259. have been feeding the hyenas
     在喂食这些鬣狗时
260. by hand.
     都直接用手
261. The inhabitants of this town believe that hyenas
     住在这里的市民们认为
262. provide another very important service.
     鬣狗还有一个非常重要的本事

来自《行星地球 第二季 第六集 Planet Earth S02E06 城市》第 259 行