在外面玩完后，孩子们累了，所以他们的母亲给他们脱了衣服，帮他们上床。
After playing outside, the children were tired, so their mother undressed them and helped them into bed.
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undressed英 /ʌnˈdrest/|美 /ʌnˈdrɛst/
解释
undressed 是动词 undress 的过去式形式。undress 由前缀 un-（表示"相反、去除"的动作）和动词 dress（穿衣服）组成，字面意思是"脱去衣服"，即"给...脱衣服"的动作。
After playing outside, the children were tired, so their mother undressed them and helped them into bed.
undressed 是动词 undress 的过去式形式。undress 由前缀 un-（表示"相反、去除"的动作）和动词 dress（穿衣服）组成，字面意思是"脱去衣服"，即"给...脱衣服"的动作。