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Piaget also discovered that older children fail at a task that's known as the A-not-B task.
皮亚杰还发现,稍大的婴儿无法完成,A非B错误任务
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$firstVoiceSent
- 来自原声例句
Piaget also discovered that older children fail at a task that's known as the A-not-B task.
皮亚杰还发现,稍大的婴儿无法完成,A非B错误任务
应用推荐