She has ruled this stretch of river for five years. 她统治这一河段已有五年之久

176. The river marks the edge of his territory...
     这条河是他领地的边界
177. ...but here he has competition.
     但在这里 他遇到了竞争对手
178. He's now in the territory of a female.
     他闯入了一只母美洲豹的地盘
179. She has ruled this stretch of river for five years.
     她统治这一河段已有五年之久
180. This is her place to hunt.
     这是她狩猎的地方
181. Capybara are strong and wary.
     水豚既强壮又机警
182. The key is stealth.
     狩猎关键在于悄无声息

来自《行星地球 第二季 第三集 Planet Earth S02E03 丛林》第 179 行