backbone
英 ['b?kb??n]
美['b?k'bon]
- n. 支柱；主干网；决心，毅力；脊椎
英英释意
- 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"
- 2. fortitude and determination;
- "he didn't have the guts to try it"
- 3. the series of vertebrae forming the axis of the skeleton and protecting the spinal cord;
- "the fall broke his back"
- 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"