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人类说话,是一种语言的交流;鸟儿唱歌,也是它们语言交流的一种表现形式。鸟儿的“语言”相当丰富呢!而且它们也有方言土语。
Human speaking is a language exchange; singing birds is also a manifestation of their language exchange. The birds' language is quite rich! And they also have dialects and dialects.