Learn five species of bird, five butterflies, five trees, five bird songs.
认识五种鸟、五种蝴蝶、五种树以及五种鸟的歌声。
Learn five species of birds five butterflies five trees five bird songs.
了解五种鸟类，五种蝴蝶，五种树木和五类鸟声。
Learn five species of birds, five butterflies, five trees, five bird songs.
了解五种鸟类，五种蝴蝶，五种树木和五类鸟声。
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