backbone

脊柱，脊骨

骨干，中坚

毅力

backbone

脊椎, 中枢, 骨干, 支柱, 意志力, 勇气, 毅力, 决心

backbone

1. a central cohesive source of support and stability; "faith is his anchor"; "the keystone of campaign reform was the ban on soft money"; "he is the linchpin of this firm"

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2. fortitude and determination; "he didn't have the guts to try it"

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3. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord; "the fall broke his back"

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4. the part of a network that connects other networks together; "the backbone is the part of a communication network that carries the heaviest traffic"

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