当我在你家时，你妈妈叫我帮她搬一些东西，所以我把钱包放在你的床上，然后下楼去帮她。
While I was in your house, your mom called me to help her carry some stuff, so I left my purse on your bed, and went downstairs to help her.
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downstairs英 /daʊnˈsteəz/|美 /daʊnˈstɛrz/
解释
downstairs 是由 down（向下）和 stairs（楼梯）组成的复合词，字面意思是"沿着楼梯向下"，表示"在楼下"或"到楼下"的意思。
While I was in your house, your mom called me to help her carry some stuff, so I left my purse on your bed, and went downstairs to help her.
downstairs 是由 down（向下）和 stairs（楼梯）组成的复合词，字面意思是"沿着楼梯向下"，表示"在楼下"或"到楼下"的意思。
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