不足 /bùzú/ angolul

insufficiency [insufficiencies]▼(the lack of sufficiency; a shortage or inadequacy)
noun
[UK: ˌɪn.sə.ˈfɪʃn.si] [US: ˌɪn.sə.ˈfɪʃn.si]

lack▼(deficiency, need)
noun
[UK: læk] [US: ˈlæk]

inadequate▼(Not adequate)
adjective
[UK: ɪn.ˈæ.dɪ.kwət] [US: ˌɪ.ˈnæ.də.kwət]

insufficient▼adjective
[UK: ˌɪn.sə.ˈfɪʃnt] [US: ˌɪn.sə.ˈfɪ.ʃənt]