Birds were chattering somewhere.是什么意思？

Birds were chattering somewhere.

鸟儿在某处唧唧喳喳地叫着。

birds

n. 鸟，禽( bird的名词复数 )，飞禽，鸟类；

例句
The birds are additionally protected in the reserves at Birsay...
鸟类在伯赛的保护区尤其受到保护。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

chattering

v. （人）喋喋不休( chatter的现在分词 )，唠叨，（牙齿）打战，（机器）震颤；

例句
Everyone's chattering away in different languages...
大家操着不同的语言喋喋不休地说着。

somewhere

adv. 某处，在某处，在[到]某处，不知道在[到]什么地方，某地；

例句
I'm going to live off campus if I can find somewhere cheap enough...
要是能找到足够便宜的地方，我就不在校园里住了。