backboneKK [ˋbæˏkbon] /ˈbæˌkboʊn/名詞1脊椎、脊柱、背脊She injured her backbone in a skiing accident last winter.她去年冬天滑雪時傷到了脊椎。2支柱、骨幹、中堅Small farms are still the backbone of the local economy.小型農場仍然是當地經濟的支柱。3骨氣、膽識、決心He lacked the backbone to stand up to his boss.他沒有膽識去跟老闆據理力爭。4主幹網路、骨幹網路電腦The fiber backbone carries traffic between the two campuses.這條光纖主幹網路負責兩個校區之間的流量。