Experienced so much, I know that as long as they have lost the freedom to work, as is the bird in a cage, forever lost the chance of flying in the sky.

经历了这么多，我知道只要是工作的都失去了自由，就象被关在笼子里的鸟，永远的失去了在天空翱翔的机会了。

youdao

Flying like a free bird: you run out of the classroom as soon as the bell rings.

像鸟一样自由飞翔：当下课铃响起的一刹那，你已跑出了教室。

youdao

Think a minute…Did you ever dream as a kid about flying like a bird?

你有没有像个孩子一样的想过能够像鸟一样飞翔？

youdao

The cognitive algorithms can also highlight many events that would otherwise be considered irrelevant but are actually indications of threats or targets, such as a bird flying by or a branch's swaying.

ENGADGET: DARPA threat detection technology uses a camera to see targets, software and soldier brains to identify them

The technology can make it sound as if a bird is flying around your head in a full circle, not just passing from one side of a room to the other.

BBC: 3D audio may revolutionise travel