Vocabulary bed-linen has learning vocabularies laid on bed linen whereby learning material, mapped on the bed-linen in the form of vocabularies, is provided on back side and front side of pillow case, bedcover and sheet
摘要
<p>The vocabulary bed-linen has learning vocabularies laid on the bed linen. Learning material is mapped on the bed-linen in the form or vocabularies. The learning vocabularies are provided on the back side and front side of the pillow case, bedcover and sheet.</p>
