n.鸟鸣声
Birdsong's original ieda was sheer genius. 伯德桑出了个绝顶聪明的主意。
Birdsong, by his nature, liked to appear dominant. 伯德桑出于本性总想显得高人一等。
Birdsong's answer was expansive. 伯德桑的回答是滔滔不绝的。
Dialects occur in birdsong as well as in speech. 语言有各种方言,鸟类的歌唱也有各种地方调。