backbonesFull entry is on its way — check back in ~20 minutesbackbonesbackbones — noun名詞1. the central supporting part of something1.名詞釋義the central supporting part of something例句Small businesses are the backbone of the economy.2. a series of vertebrae forming the spine2.名詞釋義a series of vertebrae forming the spine例句He injured his backbone in the accident.