Long before children are capable of using and understanding verbal language, they possess the ability to differentiate between objects with contrasting visual treatments.
儿童在学会说话和理解口头语言的很长时间之前，就掌握了通过比较视觉方面的不同来辨识物体的能力。
Long before children are capable of using and understanding verbal language, they possess the ability to differentiate between objects with contrasting visual treatments.
儿童在学会说话和理解口头语言的很长时间之前，就掌握了通过比较视觉方面的不同来辨识物体的能力。
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