婉转,清丽,高亢(🥇),鸟儿(ér )在枝头(🔼)欢唱(🃏)。世(shì )界自然纪录片之父爱登(dēng )堡老爵爷(yé )讲述(🛤)鸟(niǎo )类鸣叫(jiào )对(🗼)于种(🥩)群的意义(yì )。 (🎏)David Attenborough chooses seven of the most remarkable animal songs found in nature and explores the significance of these songs in the lives of their species.
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