展开 /zhǎnkāi/ angolul

unfold [unfolded, unfolding, unfolds]▼(To undo a folding)
verb
[UK: ʌn.ˈfəʊld] [US: ʌnˈfoʊld]

expansion [expansions]▼(act of expanding)
noun
[UK: ɪk.ˈspæn.ʃn̩] [US: ɪk.ˈspæn.ʃn̩]