As the afternoon wears on, 午后,

107. Sounds travel further in the cooler air
     声音在冷空气中传的更远一些
108. But few calls can penetrate as far through the dense vegetation as this one the deep bass solo of a male orangutan.
     有的叫声可以穿透密密的植被 例如这只,重低音独奏--雄红毛猩猩
109. In the middle of the day little stirs in the jungle and the hot dense air muffles the sound.
     时近中午,声音稀少, 雨林中湿热的空气也阻挡了声音的传送
110. As the afternoon wears on,
     午后,
111. a different set of players begin to warm up.
     各种声音又开始活跃起来
112. Insects work in harmony, timing their calls to fall between the notes of others.
     昆虫鸣得很和协, 他们按照时间规律来互相传达着信息
113. Many singers stick to precise schedules
     许多歌唱家都严格按照日程表来

来自《行星地球 第一季 第八集 Planet Earth S01E08 热带雨林》第 110 行