before she's big enough to stand up for herself. 才能长到足够强大 能够保护自己

171. offers an easier meal.
     相比于它 是更容易获取的美食
172. But it won't satisfy this monster for long.
     但这不会让这只怪物满足太久
173. It'll be seven or eight years of hiding in trees
     它要在树上躲七、八年
174. before she's big enough to stand up for herself.
     才能长到足够强大 能够保护自己
175. Too heavy to climb,
     成年巨蜥太重 无法爬树
176. the adult goes in search of something more accessible.
     只能去寻找更容易攻击的目标
177. A thick layer of mud can't disguise this animal's scent.
     厚厚的泥浆掩盖不住它的气味

来自《我们星球上的生命 第一季 第四集 Life on Our Planet S01E04 冷血动物》第 174 行