1. 名詞
   脊骨, 脊柱
   主山脈, 幹脈
   (網域的)樞鏈路, 供給中心
   /此名詞複數為"backbones"/
   限定單數the backbone:
   支柱
   基礎
   骨幹
   限定不可數名詞:
   骨氣
   

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   同義字詞
   chine,spinal column,spine,vertebral column
   constancy,fiber,fortitude,grit,grittiness,guts,intestinal fortitude,pluck,spunk
   

例句

1. The backbone of our world so far.
2. Sergeants were the backbone of the police.
3. And lo and behold, you have the backbone .
4. So that's very much a backbone of the season.
5. This is where the Internet backbone comes in.
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