and that could give her an advantage. 给它带来捕鱼的优势

184. than the black bears.
     更擅长捕鱼
185. Perhaps her pale coat makes it difficult for the fish to see her
     也许是因为白灵熊白色的皮毛
186. against the bright sky,
     在白天不容易被鱼发现
187. and that could give her an advantage.
     给它带来捕鱼的优势
188. But now she is old,
     但如今雌熊已经老了
189. and this year she's finding it hard.
     捕鱼一年比一年困难
190. Her fishing skills, however, haven't totally deserted her.
     然而 它精湛的捕鱼技巧还没有彻底丧失

来自《行星地球 第三季 第五集 Planet Earth S03E05 森林》第 187 行