At last. 总算回来了

307. Her chicks are now desperate.
     小鸟们快要绝望了
308. In the midst of all this deafening chorus,
     在这震耳欲聋的叫声之中
309. he can recognise her particular cry.
     他可以辨识出对方特有的声音
310. At last.
     总算回来了
311. Both chicks will get a meal.
     两只雏鸟都能饱餐一顿
312. With a head bob of acknowledgement, their mother now leaves.
     点头示意之后 他们的母亲出发了
313. It's her turn to do the feeding run.
     轮到她外出捕食了

来自《行星地球 第二季 第一集 Planet Earth S02E01 岛屿》第 310 行