後備 angolul

reserve [reserves]▼(that which is reserved or kept back, as for future use)
noun
[UK: rɪ.ˈzɜːv] [US: rə.ˈzɝːv]

trunk [trunks]▼(luggage storage compartment of a sedan/saloon style car)
noun
[UK: trʌŋk] [US: ˈtrəŋk]