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1. Oxford American Dictionary

   backbone

   • IPA[ˈbakˌbōn]

   美式

   • n.
     the series of vertebrae extending from the skull to the pelvis; the spine；the spine of a book.

   • noun: backbone, plural noun: backbones

2. • 釋義

   n.

   名詞

   • 1. the series of vertebrae extending from the skull to the pelvis; the spine prickles of sweat broke out along her backbone the great Pennine range is the backbone of England 同義詞 spine, spinal column, vertebral column, vertebrae, back, ... 更多technicaldorsum, rachis
   • ▪ US the spine of a book.
   • ▪ the main chain of a polymeric molecule.
   • 2. the chief support of a system or organization; the mainstay these firms are the backbone of our industrial sector 同義詞 mainstay, cornerstone, foundation, chief support, buttress, ... 更多pillar, sinews
   • ▪ strength of character; firmness he has the backbone to see us through this difficulty 同義詞 strength of character, strength of will, firmness of purpose, firmness, resolution, ... 更多resolve, determination, fortitude, mettle, moral fiber, spine, steel, nerve, spirit, pluck, pluckiness, courage, courageousness, bravery, braveness, valor, manliness, informalguts, spunk, grit, bottle, vulgar slangballs反義詞 weakness
   • 3. a high-speed, high-capacity digital connection which forms the axis of a local or wide area network.