backbone

noun

/ˈbækbəʊn/

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[countable] the row of small bones that are connected together down the middle of the back脊梁骨；脊柱
synonym spineTopics Bodyb1
[singular] the most important part of a system, an organization, etc. that gives it support and strength支柱；骨干；基础
- Agriculture forms the backbone of the rural economy.农业是农村经济的基础。
[uncountable] the strength of character that you need to do something difficult毅力；骨气
- He doesn't have the backbone to face the truth.他没有面对现实的勇气。