allowing her to get within striking distance. 它正逐渐进入攻击范围

199. For the leopard the snow provides cover
     不过雪却能为雪豹提供掩护
200. and creates an opportunity.
     使它有机会捕猎
201. The worsening weather dampens the sound of her approach
     恶劣的天气掩盖了它逼近的脚步声
202. allowing her to get within striking distance.
     它正逐渐进入攻击范围
203. It was an act of desperation
     它已被逼上了绝路
204. to try and catch such a large animal.
     所以才会捕捉如此大的动物
205. Wolves have made a kill
     狼刚进行完一场屠杀

来自《行星地球 第一季 第二集 Planet Earth S01E02 山地》第 202 行