How do Dinosaurs learn colours and numbers 恐龙如何学颜色和数字

How do Dinosaurs learn colours and numbers 恐龙如何学颜色和数字

2018-06-03    15'57''

主播: 邓邓儿邓邓儿

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介绍:
恐龙如何学颜色和数字?。How do dinosaurs learn colors and numbers?