and a primeval sound heralds the onset of autumn. 一声富有攻击力的原始声音在宣布秋天的到来

182. This may be the single largest dose of fertilizer in the natural world.
     这可能是自然界最大剂量的一只营养针
183. In the great broad leaf forests of Eastern Europe
     在东欧的大片落叶阔叶林那边
184. the days are beginning to shorten,
     白昼开始缩短
185. and a primeval sound heralds the onset of autumn.
     一声富有攻击力的原始声音在宣布秋天的到来
186. Male red deer are starting their rut.
     雄性马鹿正在按惯例行事
187. The air is heavy with the scent of females.
     空气中弥漫着雌马鹿的气味
188. The rules are simple.
     规则很简单

来自《行星地球 第一季 第十集 Planet Earth S01E10 季节森林》第 185 行