bird可数的。可数就是可以用数量表示。复数形式：birds
例句：
扩展资料
The bird is now a rare sight in this country.
如今在这个国家，这种鸟已罕见了。
The birds are found in over 70 different localities.
现已发现这种鸟栖息在70多个不同的'地区。
The cat was on the wall, watching for birds.
那只猫在墙上伺机捕捉鸟儿。
You dont often see this bird in daytime.
这种鸟白天不常见。
Some birds which were once a common sight are now becoming rare.
有些曾经随处可见的鸟类现在日益稀少。
