点击收听音频讲解：
Some birds are not meant to be caged.
Their feathers are just too bright.
And when they fly away,
the part of you that knows it was a sin to lock them up does rejoice.
(来自于电影肖生克的救赎）
有些鸟儿是关不住的。他们的羽毛太鲜亮了。当它们飞走的时候，你心里知道把他们关起来是一种罪恶，你会因此而兴奋不已。
Key words:
bird n. 小鸟；bird flu 禽流感
are not meant to be 注定不会被...；meant=mean; We are meant to be a couple.我们是天生的一对。
mean adj. 吝啬的；小气鬼；You are so mean! 你贼小气！
feather n. 羽毛；
bright adj. 明亮的；bright future/promising future
fly away 飞走；
sin n. 罪过
lock up 把...关起来；It is a good idea to lock your Huskie up. 最好把你的哈士奇关起来。
rejoice v. 贼高兴；（错误表达：You are rejoice./I am rejoice. 正确表达：I/You rejoice.）
