例句：
The area has a wealth of bird life.
這個地區(qū)棲息著大量的鳥。
The bird had escaped from captivity.
那只鳥已經(jīng)逃離樊籠。
The bird disappeared into the scrub.
鳥消失在矮樹叢中。
The bird flapped its wings furiously.
那只鳥使勁地拍打著翅膀。
There was a bird perched on the roof.
有一只鳥落在屋頂上。
A bird had pecked a hole in the sack.
一只鳥把袋子啄了個洞。