unfold替换词有:vt. 打开;呈现crack/assume/open upvi. 展开;显露expand/developunfold美/ʌnˈfoʊld/英/ʌnˈfəʊld/vt.打开;呈现vi.展开;显露过去式unfolded过去分词unfolded现在分词unfolding第三人称单数unfolds双语例句:He took a map out of his backpack andunfoldit.他从背包里拿出一张地图并将其展开。